Question

When the number of frequencies are put in a cell in a contingency table, the degree of freedom will be _________

• A. (R + 1) (C + 1)
• B. (R - 1) (C + 1)
• C. (R + 1) (C - 1)
• D. (R - 1) (C - 1)

Hint:

Always remember to subtract 1 from BOTH the number of rows and the number of columns before multiplying! For a standard $2 \times 2$ table (like testing sick vs healthy against treatment vs placebo), the degrees of freedom is simply $(2-1) \times (2-1) = 1$.

Answer 1

The Correct Option is D