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【题目】在一项中学生近视情况的调查中,某校男生150名中有80名近视,女生140名中有70名近视,在检验这些中学生眼睛近视是否与性别有关时用什么方法最有说服力

A.平均数与方差 B.回归分析

C.独立性检验 D.概率

【答案】C

【解析】判断两个分类变量是否有关的最有效方法是进行独立性检验,故选C.

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