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简要说明在对两组数据差异程度进行比较时 , 能否直接比较两组数据的标准差 .

问答题
2022-04-02 18:18
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正确答案

试题解析

当对比的两个事物是同属性,并且平均水平相同时,可以直接比较两组数据的标准差。

在两组数据属性不同时,或平均水平不等时,需要通过计算离散系数说明其平均数的代表性强弱。


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