This is a very valid statistical question



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送交者: wasguru 于 2005-12-02, 00:20:32:

回答: 这就有点找茬了. 你如果不信该文,请读后就具体问题提出批评. 由 聊斋2 于 2005-12-01, 23:13:04:

Adjusting for confouding variables is extremely important when you compare two groups of people.




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