谢谢回答
题目没给你指定的数据,所以你就自己拼吧。我给你个例子:
(a) 125,128,139,161,165,167
(139+161)÷ 2=150
(b) 125,128,139,161,165,167
平均数=128+139+161+165+167
=760÷ 5
=152