Answer:
Option a) 4
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 75
We have to carry a chi distribution test when testing for independence of two variables each with three categories.
Thus, we are given that
Total number of rows for contingency table, r = 3
Total number of columns for contingency table, c = 3
Degree of freedom =
[tex]=(r-1)(c-1)\\=(3-1)(3-1)\\=4[/tex]
The degree of freedom is 4.
