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प्रश्न
The correlation coefficient is
विकल्प
r(X, Y) = `(sigma_"x" sigma_"y")/("cov"("x","y"))`
r(X, Y) = `("cov"("x","y"))/(sigma_"x" sigma_"y")`
r(X, Y) = `("cov"("x","y"))/(sigma_"y")`
r(X, Y) = `("cov"("x","y"))/(sigma_"x")`
उत्तर
r(X, Y) = `("cov"("x","y"))/(sigma_"x" sigma_"y")`
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