试题与答案

某样品测定六次,数据如下:40.15,40.14,40.13,40.14,40.17

题型:单项选择题

题目:

某样品测定六次,数据如下:40.15,40.14,40.13,40.14,40.17,40.14,它的平均值为()。

A.40.15

B.40.145

C.40.16

D.40.14

答案:

参考答案:D

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