In a contingency table with 7 rows and 4 columns, how many degrees of freedom are there for a chi-square test of indepen
Posted: Sun Oct 03, 2021 11:34 am
In a contingency table with 7 rows and 4 columns, how many degrees of freedom are there for a chi-square test of independence? A. 7 . B. 28 C. 21 . D. 4 . E. 18