Question: When the 2 by 2 chi square contingency table contains expected frequencies of less than 5, most statisticians agree that the Yates correction must be

When the 2 by 2 chi square contingency table contains expected frequencies of less than 5, most statisticians agree that

the Yates correction must be applied

coefficient of contingency must be applied

the degrees of freedom then must increase by 5

the chi square should not be calculated

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