The number of degrees of freedom for a contingency table with r rows and c columns is:
A) r + c
B) rc
C) (r - 1)(c - 1)
D) None of these choices.

Question

Quizplus · Accepted Answer

The formula for calculating the degrees of freedom for a contingency table is (r-1)(c-1). Therefore, the correct choice is (r-1)(c-1), which is equivalent to (r F1F1F1S1F1F1F10 1)(c F1F1F1S1F1F1F10 1) after simplification.

The Number of Degrees of Freedom for a Contingency Table