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作者:iuranus

请问,两组数据之间(如高数成绩10,12,25,30与线代成绩20,50,60,77)进行比较,一定要先把数据通过z-score方式处理成符合(标准)正态分布才更严谨吗?(例如用log(x)/log(max)归一化后组内数据比较没问题,但组间比较也经得起推敲吗?)

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作者:Abbo

好久没搞了,不知道啊

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