diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/README.md b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/README.md
index 289ace4c55f8..bfab7ee249ef 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/README.md
@@ -116,6 +116,101 @@ for ( i = 0; i < 10; i++ ) {
 
 <!-- /.examples -->
 
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/stats/base/dists/chi/stdev.h"
+```
+
+#### stdlib_base_dists_chi_stdev( k )
+
+Returns the standard deviation of a chi distribution.
+
+```c
+double out = stdlib_base_dists_chi_stdev( 9.0 );
+// returns ~0.697
+```
+
+The function accepts the following arguments:
+
+-   **k**: `[in] double` degrees of freedom (must be positive)
+
+```c
+double stdlib_base_dists_chi_stdev( const double k );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/stats/base/dists/chi/stdev.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+static double random_uniform( const double min, const double max ) {
+    double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+    return min + ( v * ( max - min ) );
+}
+
+int main( void ) {
+    double k;
+    double result;
+    int i;
+
+    for ( i = 0; i < 10; i++ ) {
+        k = random_uniform( 0.1, 10.0 ); // Ensure `k` is positive
+        result = stdlib_base_dists_chi_stdev( k );
+
+        printf( "k: %lf, Standard Deviation: %lf \n", k, result );
+    }
+
+    return 0;
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
 <!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
 
 <section class="references">
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..c01b2ff2e6e6
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/benchmark.native.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var Float64Array = require( '@stdlib/array/float64' );
+var randu = require( '@stdlib/random/base/randu' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var stdev = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( stdev instanceof Error )
+};
+
+
+// MAIN //
+
+bench( pkg+'::native', opts, function benchmark( b ) {
+	var len;
+	var k;
+	var y;
+	var i;
+
+	len = 100;
+	k = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		k[ i ] = ( randu() * 10.0 ) + 0.1; // Ensure k > 0
+	}
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = stdev( k[ i % len ] );
+		if ( isnan( y ) ) {
+			b.fail( 'should not return NaN' );
+		}
+	}
+	b.toc();
+	if ( isnan( y ) ) {
+		b.fail( 'should not return NaN' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/Makefile
new file mode 100644
index 000000000000..a4bd7b38fd74
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/benchmark.c
new file mode 100644
index 000000000000..af2413c3541b
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/benchmark/c/benchmark.c
@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/chi/stdev.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "chi-stdev"
+#define ITERATIONS 1000000
+#define REPEATS 3
+
+static void print_version( void ) {
+	printf( "TAP version 13\n" );
+}
+
+static void print_summary( int total, int passing ) {
+	printf( "#\n" );
+	printf( "1..%d\n", total ); // TAP plan
+	printf( "# total %d\n", total );
+	printf( "# pass  %d\n", passing );
+	printf( "#\n" );
+	printf( "# ok\n" );
+}
+
+static void print_results( double elapsed ) {
+	double rate = (double)ITERATIONS / elapsed;
+	printf( "  ---\n" );
+	printf( "  iterations: %d\n", ITERATIONS );
+	printf( "  elapsed: %0.9f\n", elapsed );
+	printf( "  rate: %0.9f\n", rate );
+	printf( "  ...\n" );
+}
+
+static double tic( void ) {
+	struct timeval now;
+	gettimeofday( &now, NULL );
+	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+static double random_uniform( const double min, const double max ) {
+	double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+	return min + ( v * ( max - min ) );
+}
+
+static double benchmark( void ) {
+	double elapsed;
+	double k[ 100 ];
+	double y;
+	double start;
+	int i;
+
+	for ( i = 0; i < 100; i++ ) {
+		k[ i ] = random_uniform( 0.1, 10.0 );
+	}
+
+	start = tic();
+	for ( i = 0; i < ITERATIONS; i++ ) {
+		y = stdlib_base_dists_chi_stdev( k[ i%100 ] );
+		if ( isnan( y ) ) {
+			printf( "should not return NaN\n" );
+			break;
+		}
+	}
+	elapsed = tic() - start;
+
+	if ( isnan( y ) ) {
+		printf( "should not return NaN\n" );
+	}
+	return elapsed;
+}
+
+int main( void ) {
+	double elapsed;
+	int i;
+
+	// Seed the random number generator:
+	srand( time( NULL ) );
+
+	print_version();
+	for ( i = 0; i < REPEATS; i++ ) {
+		printf( "# c::%s\n", NAME );
+		elapsed = benchmark();
+		print_results( elapsed );
+		printf( "ok %d benchmark finished\n", i+1 );
+	}
+	print_summary( REPEATS, REPEATS );
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/binding.gyp b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/binding.gyp
new file mode 100644
index 000000000000..114dcb77c6aa
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/binding.gyp
@@ -0,0 +1,149 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+    # List of files to include in this file:
+    "includes": [
+        "./include.gypi",
+    ],
+    # Define variables to be used throughout the configuration for all targets:
+    "variables": {
+        # Target name should match the add-on export name:
+        "addon_target_name%": "addon",
+        # Set variables based on the host OS:
+        "conditions": [
+            [
+                'OS=="win"',
+                {
+                    # Define the object file suffix:
+                    "obj": "obj",
+                },
+                {
+                    # Define the object file suffix:
+                    "obj": "o",
+                },
+            ],  # end condition (OS=="win")
+        ],  # end conditions
+    },  # end variables
+    # Define compile targets:
+    "targets": [
+        # Target to generate an add-on:
+        {
+            # The target name should match the add-on export name:
+            "target_name": "<(addon_target_name)",
+            # Define dependencies:
+            "dependencies": [],
+            # Define directories which contain relevant include headers:
+            "include_dirs": [
+                # Local include directory:
+                "<@(include_dirs)",
+            ],
+            # List of source files:
+            "sources": [
+                "<@(src_files)",
+                "src/addon.c",
+            ],
+            # Settings which should be applied when a target's object files are used as linker input:
+            "link_settings": {
+                # Define libraries:
+                "libraries": [
+                    "<@(libraries)",
+                ],
+                # Define library directories:
+                "library_dirs": [
+                    "<@(library_dirs)",
+                ],
+            },
+            # C/C++ compiler flags:
+            "cflags": [
+                # Enable commonly used warning options:
+                "-Wall",
+                # Aggressive optimization:
+                "-O3",
+            ],
+            # C specific compiler flags:
+            "cflags_c": [
+                # Specify the C standard to which a program is expected to conform:
+                "-std=c99",
+            ],
+            # C++ specific compiler flags:
+            "cflags_cpp": [
+                # Specify the C++ standard to which a program is expected to conform:
+                "-std=c++11",
+            ],
+            # Linker flags:
+            "ldflags": [],
+            # Apply conditions based on the host OS:
+            "conditions": [
+                [
+                    'OS=="mac"',
+                    {
+                        # Linker flags:
+                        "ldflags": [
+                            "-undefined dynamic_lookup",
+                            "-Wl,-no-pie",
+                            "-Wl,-search_paths_first",
+                        ],
+                    },
+                ],  # end condition (OS=="mac")
+                [
+                    'OS!="win"',
+                    {
+                        # C/C++ flags:
+                        "cflags": [
+                            # Generate platform-independent code:
+                            "-fPIC",
+                        ],
+                    },
+                ],  # end condition (OS!="win")
+            ],  # end conditions
+        },  # end target <(addon_target_name)
+        # Target to copy a generated add-on to a standard location:
+        {
+            "target_name": "copy_addon",
+            # Declare that the output of this target is not linked:
+            "type": "none",
+            # Define dependencies:
+            "dependencies": [
+                # Require that the add-on be generated before building this target:
+                "<(addon_target_name)",
+            ],
+            # Define a list of actions:
+            "actions": [
+                {
+                    "action_name": "copy_addon",
+                    "message": "Copying addon...",
+                    # Explicitly list the inputs in the command-line invocation below:
+                    "inputs": [],
+                    # Declare the expected outputs:
+                    "outputs": [
+                        "<(addon_output_dir)/<(addon_target_name).node",
+                    ],
+                    # Define the command-line invocation:
+                    "action": [
+                        "cp",
+                        "<(PRODUCT_DIR)/<(addon_target_name).node",
+                        "<(addon_output_dir)/<(addon_target_name).node",
+                    ],
+                },
+            ],  # end actions
+        },  # end target copy_addon
+    ],  # end targets
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/Makefile
new file mode 100644
index 000000000000..25ced822f96a
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/example.c
new file mode 100644
index 000000000000..a582c7eb034c
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/examples/c/example.c
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/stats/base/dists/chi/stdev.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+static double random_uniform( const double min, const double max ) {
+    double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+    return min + ( v * ( max - min ) );
+}
+
+int main( void ) {
+    double k;
+    double result;
+    int i;
+
+    for ( i = 0; i < 10; i++ ) {
+        k = random_uniform( 0.1, 10.0 ); // Ensure `k` is positive
+        result = stdlib_base_dists_chi_stdev( k );
+
+        printf( "k: %lf, Standard Deviation: %lf \n", k, result );
+    }
+
+    return 0;
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include.gypi
new file mode 100644
index 000000000000..235be47d6d3b
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include.gypi
@@ -0,0 +1,48 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+    # Define variables to be used throughout the configuration for all targets:
+    "variables": {
+        # Source directory:
+        "src_dir": "./src",
+        # Include directories:
+        "include_dirs": [
+            "<!@(node -e \"var arr = require('@stdlib/utils/library-manifest')('./manifest.json',{},{'basedir':process.cwd(),'paths':'posix'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }\")",
+        ],
+        # Add-on destination directory:
+        "addon_output_dir": "./src",
+        # Source files:
+        "src_files": [
+            "<(src_dir)/addon.c",
+            "<!@(node -e \"var arr = require('@stdlib/utils/library-manifest')('./manifest.json',{},{'basedir':process.cwd(),'paths':'posix'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }\")",
+        ],
+        # Library dependencies:
+        "libraries": [
+            "<!@(node -e \"var arr = require('@stdlib/utils/library-manifest')('./manifest.json',{},{'basedir':process.cwd(),'paths':'posix'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }\")",
+        ],
+        # Library directories:
+        "library_dirs": [
+            "<!@(node -e \"var arr = require('@stdlib/utils/library-manifest')('./manifest.json',{},{'basedir':process.cwd(),'paths':'posix'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }\")",
+        ],
+    },  # end variables
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include/stdlib/stats/base/dists/chi/stdev.h b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include/stdlib/stats/base/dists/chi/stdev.h
new file mode 100644
index 000000000000..64b77317ca36
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/include/stdlib/stats/base/dists/chi/stdev.h
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_STATS_BASE_DISTS_CHI_STDEV_H
+#define STDLIB_STATS_BASE_DISTS_CHI_STDEV_H
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Returns the standard deviation of a chi distribution.
+*
+* @param k    degrees of freedom (must be positive)
+* @return     standard deviation
+*/
+double stdlib_base_dists_chi_stdev( const double k );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_STATS_BASE_DISTS_CHI_STDEV_H
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/lib/native.js
new file mode 100644
index 000000000000..1251a3d0acc5
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/lib/native.js
@@ -0,0 +1,58 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Returns the standard deviation of a chi distribution.
+*
+* @private
+* @param {PositiveNumber} k - degrees of freedom
+* @returns {number} standard deviation
+*
+* @example
+* var v = stdev( 9.0 );
+* // returns ~0.697
+*
+* @example
+* var v = stdev( 1.0 );
+* // returns ~0.603
+*
+* @example
+* var v = stdev( -0.2 );
+* // returns NaN
+*
+* @example
+* var v = stdev( NaN );
+* // returns NaN
+*/
+function stdev( k ) {
+	return addon( k );
+}
+
+
+// EXPORTS //
+
+module.exports = stdev;
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/manifest.json
new file mode 100644
index 000000000000..e62f2b269ea6
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/manifest.json
@@ -0,0 +1,82 @@
+{
+  "options": {
+    "task": "build",
+    "wasm": false
+  },
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "task": "build",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/napi/unary",
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/sqrt",
+        "@stdlib/stats/base/dists/chi/mean"
+      ]
+    },
+    {
+      "task": "benchmark",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/sqrt",
+        "@stdlib/stats/base/dists/chi/mean"
+      ]
+    },
+    {
+      "task": "examples",
+      "wasm": false,
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/math/base/assert/is-nan",
+        "@stdlib/math/base/special/sqrt",
+        "@stdlib/stats/base/dists/chi/mean"
+      ]
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/package.json b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/package.json
index 472bd8f95368..0cdcda2397db 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/package.json
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/package.json
@@ -14,11 +14,14 @@
     }
   ],
   "main": "./lib",
+  "gypfile": true,
   "directories": {
     "benchmark": "./benchmark",
     "doc": "./docs",
+    "include": "./include",
     "example": "./examples",
     "lib": "./lib",
+    "src": "./src",
     "test": "./test"
   },
   "types": "./docs/types",
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/Makefile
new file mode 100644
index 000000000000..7733b6180cb4
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2025 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+	$(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/addon.c
new file mode 100644
index 000000000000..77aacc6642b4
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/addon.c
@@ -0,0 +1,23 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/math/base/napi/unary.h"
+#include "stdlib/stats/base/dists/chi/stdev.h"
+
+// cppcheck-suppress shadowFunction
+STDLIB_MATH_BASE_NAPI_MODULE_D_D( stdlib_base_dists_chi_stdev )
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/main.c
new file mode 100644
index 000000000000..ce682849ba46
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/src/main.c
@@ -0,0 +1,51 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/math/base/assert/is_nan.h"
+#include "stdlib/math/base/special/sqrt.h"
+#include "stdlib/stats/base/dists/chi/mean.h"
+
+/**
+* Returns the standard deviation of a chi distribution.
+*
+* @param k    degrees of freedom (must be positive)
+* @return     standard deviation, or NaN if input is invalid
+*
+* @example
+* double v = stdlib_base_dists_chi_stdev( 9.0 );
+* // returns ~0.697
+*
+* @example
+* double v = stdlib_base_dists_chi_stdev( 1.0 );
+* // returns ~0.603
+*
+* @example
+* double v = stdlib_base_dists_chi_stdev( -0.2 );
+* // returns NaN
+*
+* @example
+* double v = stdlib_base_dists_chi_stdev( NAN );
+* // returns NaN
+*/
+double stdlib_base_dists_chi_stdev( const double k ) {
+    if ( stdlib_base_is_nan( k ) || k <= 0.0 ) {
+        return 0.0 / 0.0; // NaN
+    }
+    double mu = stdlib_base_dists_chi_mean( k );
+    return stdlib_base_sqrt( k - ( mu * mu ) );
+}
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/test/test.native.js
new file mode 100644
index 000000000000..8f9cf14de7b0
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/base/dists/chi/stdev/test/test.native.js
@@ -0,0 +1,92 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+
+
+// VARIABLES //
+
+var stdev = tryRequire( resolve( __dirname, './../lib/native.js' ) );
+var opts = {
+	'skip': ( stdev instanceof Error )
+};
+
+
+// FIXTURES //
+
+var data = require( './fixtures/python/data.json' );
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof stdev, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'if provided `NaN` for `k`, the function returns `NaN`', opts, function test( t ) {
+	var v = stdev( NaN );
+	t.equal( isnan( v ), true, 'returns NaN' );
+	t.end();
+});
+
+tape( 'if provided a degrees of freedom parameter `k` that is not a nonnegative number, the function returns `NaN`', opts, function test( t ) {
+	var v;
+
+	v = stdev( -1.0 );
+	t.equal( isnan( v ), true, 'returns NaN' );
+
+	v = stdev( NINF );
+	t.equal( isnan( v ), true, 'returns NaN' );
+
+	t.end();
+});
+
+tape( 'the function returns the standard deviation of a chi distribution', opts, function test( t ) {
+	var expected;
+	var delta;
+	var tol;
+	var k;
+	var i;
+	var y;
+
+	expected = data.expected;
+	k = data.k;
+	for ( i = 0; i < expected.length; i++ ) {
+		y = stdev( k[i] );
+		if ( y === expected[i] ) {
+			t.equal( y, expected[i], 'k:'+k[i]+', y: '+y+', expected: '+expected[i] );
+		} else {
+			delta = abs( y - expected[ i ] );
+			tol = 50.0 * EPS * abs( expected[ i ] );
+			t.ok( delta <= tol, 'within tolerance. k: '+k[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
+		}
+	}
+	t.end();
+});