Question

A test for independence is applied to a contingency table with 3 rows and 5 columns for two nominal variables. The degrees of freedom for this test will be:

A) 20
B) 12
C) 8
D) 15

Answer 1

Degrees of freedom = (r - 1)(c - 1) ...where r = number of rows and c = number of columns.

I'll let you take it from there.

Answer 2

Thank you MathGuru