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If X and Y Are Two Variables With σx2=12.25\sigma _ { x } ^ { 2 } = 12.25

Question 66

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If X and Y are two variables with σx2=12.25\sigma _ { x } ^ { 2 } = 12.25 , σy2=17.64\sigma _ { y } ^ { 2 } = 17.64 , and COV(X, Y) = 11.76, then the coefficient of correlation ρ\rho = 0.8.

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