Mathematics · Correlation and Regression
The Karl Pearson's correlation coefficient (r) between two random variables, X and Y, is computed by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1r(X,Y) = Cov(X,Y)(σXσY)2
- 2r(X,Y) = Cov(X,Y)σXσY✓
- 3r(X,Y) = σXσYCov(X,Y)
- 4r(X,Y) = Cov(X,Y) × σXσY
Correct answer
r(X,Y) = Cov(X,Y)σXσY
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