The degree of freedom associated with a chi-square test for two-way tables with r rows and c columns is
A)r - 1.
B)c - 1.
C)(r - 1)(c - 1).

Question

Quizplus · Accepted Answer

The degree of freedom associated with a chi-square test for two-way tables with r rows and c columns is given by (r-1) times (c-1). This is because in a two-way table, the number of expected values for each cell is not independent, and thus, the degrees of freedom cannot be calculated simply by subtracting 1 from each row and column total. Therefore, the correct choice is (r-1)(c-1) for the degree of freedom.

The Degree of Freedom Associated with a Chi-Square Test for Two-Way