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第三章计数资料的逻辑处理(续) (二)卡方检验卡方的符号是x~2,x是希腊字母,读作Kai。卡方检验可以对两组或多组率之间的差异进行比较,也
Chapter III Logical Processing of Counting Data (Continued) (b) The chi-squared checker’s symbol is x~2, where x is the Greek alphabet and is pronounced Kai. Chi-square test can compare the difference between two or more groups of rates, also