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四格表资料的假设检验常用方法为 X~2检验。四格表又称2×2表,其一般形式如下.N=a+b+c+d。X~2检验是一种用途广的假设检验方法。X~2值的意义和算法可用式(1)这个基本公式来说明。
The commonly used method for hypothesis testing of the four-table data is the X~2 test. The four-cell table, also known as the 2x2 table, has the following general form: N=a+b+c+d. The X~2 test is a widely used hypothesis testing method. The meaning and algorithm of the X~2 value can be explained by the basic formula of (1).