If a chi-square test is to be performed on a contingency table with 3 rows and 4 columns, how many degrees of freedom should be used?
A. 6
B. 12
C. 8
D. 9
Answer:A
If a chi-square test is to be performed on a contingency table with 3 rows and 4 columns, how many degrees of freedom should be used?
A. 6 B. 12 C. 8 D. 9