Mathematics · Correlation and Regression
Which of the following formulas is used for testing the significance of the sample correlation coefficient (r)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1t = r √(n + 2) √(1 + r 2 )
- 2t = r √(n - 3) √(1 - r 2 )
- 3t = r √(n + 2) √(2 - r 2 )
- 4t = r √(n - 2) √(1 - r 2 )✓
Correct answer
t = r √(n - 2) √(1 - r 2 )
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