SSC CGL Tier II (JSO) 4 March 2023 Paper

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Question : 5 of 100

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The Karl Pearson’s correlation coefficient (r) between two random variables, X and Y, is computed by:

r(X,Y) = Cov(X,Y)*σ_Xσ_Y
$r(X,Y) = \;{σ\;_{X}σ\;_{Y}}/{Cov(X,Y)}$
$r(X,Y) = \;{Cov(X,Y)}/{σ\;_{X}σ _{Y}}$
$r(X,Y) = \;{Cov(X,Y)}/{(σ\;_{X}σ _{Y}2^{undefined}.}$

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