feat(add c implementation): add stats/base/dists/erlang/mean

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Author: vivekmaurya001

lib/node_modules/@stdlib/stats/base/dists/erlang/mean/lib/native.js

@@ -46,10 +46,6 @@ var addon = require( './../src/addon.node' );
 * // returns 4.0
 *
 * @example
-* var v = mean( 1.5, 2.0 );
-* // returns NaN
-*
-* @example
 * var v = mean( 1, -0.1 );
 * // returns NaN
 *