Ruby Examples

level3/28.rb

@@ -0,0 +1,10 @@
+#!/usr/bin/ruby
+# -*- coding: utf-8 -*-
+
+=begin
+배열의 평균값 구하기
+=end
+
+arr = [5, 7, 4, 3, 2, 9, 1, 6]
+
+puts arr.sum / arr.size.to_f