chore: apply suggestions from code review

Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: Planeshifter

lib/node_modules/@stdlib/stats/base/dists/levy/variance/README.md

@@ -210,7 +210,7 @@ int main( void ) {
     int i;
 
     for ( i = 0; i < 25; i++ ) {
-        mu = random_uniform( 0.0, 10.0 ) - 5.0;
+        mu = random_uniform( -5.0, 5.0 );
         c = random_uniform( 0.0, 20.0 );
         y = stdlib_base_dists_levy_variance( mu, c );
         printf( "µ: %lf, c: %lf, Var(X;µ,c): %lf\n", mu, c, y );

lib/node_modules/@stdlib/stats/base/dists/levy/variance/benchmark/c/benchmark.c

@@ -101,8 +101,8 @@ static double benchmark( void ) {
 	int i;
 
 	for ( i = 0; i < 100; i++ ) {
-		mu[ i ] = random_uniform( 0.0, 100.0 ) - 50.0;
-		c[ i ] = random_uniform( 0.0, 20.0 ) + STDLIB_CONSTANT_FLOAT64_EPS;
+		mu[ i ] = random_uniform( -50.0, 50.0 );
+		c[ i ] = random_uniform( STDLIB_CONSTANT_FLOAT64_EPS, 20.0 );
 	}
 
 	t = tic();

lib/node_modules/@stdlib/stats/base/dists/levy/variance/examples/c/example.c

@@ -32,7 +32,7 @@ int main( void ) {
 	int i;
 
 	for ( i = 0; i < 25; i++ ) {
-		mu = random_uniform( 0.0, 10.0 ) - 5.0;
+		mu = random_uniform( -5.0, 5.0 );
 		c = random_uniform( 0.0, 20.0 );
 		y = stdlib_base_dists_levy_variance( mu, c );
 		printf( "µ: %lf, c: %lf, Var(X;µ,c): %lf\n", mu, c, y );