Mathematics · Correlation and Regression
Using standard statistical notations, the Karl Pearson correlation coefficient between two random variables, X and Y, is given by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1r(X, Y) = σXσYCov(X, Y)
- 2r(X, Y) = Cov(X, Y)σXσY✓
- 3r(X, Y) = Cov(X, Y) + σXσY
- 4r(X, Y) = Cov(X, Y) - σXσY
Correct answer
r(X, Y) = Cov(X, Y)σXσY
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