Mathematics · Statistics and Probability

For the calculation of Chi-square (χ2) on a null hypothesis for a contingency table, the degrees of freedom are given by:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1(r - 1) + (c - 1)
2(r - 1)(c - 1)✓
3(r - c) + 1
4(r + c) - 1

Correct answer

(r - 1)(c - 1)

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For the calculation of Chi-square (χ2) on a null hypothesis for a contingency table, the degrees of freedom are given by:

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