The degrees of freedom for the chisquare test for independen

The degrees of freedom for the chi-square test for independence is: A. the number of categories minus one. B. the number of columns minus one multiplied by the number of rows minus one. C. the total number of category levels minus one. D. the number of people minus the number of cells.

B. the number of columns minus one multiplied by the number of rows minus one, it can be denoted as

^2 degrees of freedom = ( r-1 ) * (c-1)