Which of the following is a definition of the covariance between X and Y?
A. Correlation between X and Y times variance of X times variance of Y
B. Variance of X times the variance of Y
C. Correlation between X and Y divided by the product of the standard deviation of X and the standard deviation of Y
D. Correlation between X and Y times standard deviation of X times standard deviation of Y
D
Covariance is the coefficient of correlation multiplied by the product of the two standard deviations.
Business
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