This is the sample script to use the class

import druva.ArrayUtils;

var arr:Array = new Array(2,2,30);

trace(ArrayUtils.average(arr));

Actual Class to calculate average of numbers in array

package druva{
	//@ Author Druva

	import flash.display.Sprite;

	public class ArrayUtils extends Sprite {
		public function ArrayUtils() {
		}

		//@ return average of the numbers in an array
		public static function average(arr:Array):Number {
			var res = (sum(arr) / arr.length );
			return res;
		}

	}
}