In r x c table for test of Independence the degree of freedom is _____________?
Correct answer: D. (r -1) (c -1)
- A. r + c
- B. rc
- C. ι r - c ι
- D. (r -1) (c -1)
Explanation
For an r × c contingency table, the degrees of freedom are obtained by multiplying the numbers of independent row and column categories: (r−1)(c−1).
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