fix: random number generation

Co-authored-by: Philipp Burckhardt <[email protected]>
Signed-off-by: Shabareesh Shetty <[email protected]>

Author: ShabiShett07

lib/node_modules/@stdlib/stats/base/dists/kumaraswamy/stdev/examples/c/example.c

@@ -32,8 +32,8 @@ int main( void ) {
 	int i;
 
 	for ( i = 0; i < 25; i++ ) {
-		a = random_uniform( 0.0, 10.0 ) - 5.0;
-		b = random_uniform( 0.0, 10.0 ) - 5.0;
+		a = random_uniform( -5.0, 5.0 );
+		b = random_uniform( -5.0, 5.0 );
 		y = stdlib_base_dists_kumaraswamy_stdev( a, b );
 		printf( "a: %lf, b: %lf, Var(X;a,b): %lf\n", a, b, y );
 	}