

MCQOPTIONS
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1. |
"Mathematical Expectation of the product of two random variables is equal to the product of their expectations" is true for |
A. | any two random variables |
B. | if the random variables are independent |
C. | if the covariance between the random variables is nonzero |
D. | if the variance of the random variables is equal |
Answer» C. if the covariance between the random variables is nonzero | |