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8. Let X and Y be random variables with joint probability density function 8 Maybg, 0 8. Let X and Y be random variables with

8. Let X and Y be random variables with joint probability density function 8 Maybg, 0

8. Let X and Y be random variables with joint probability density function 8a;y where k is a positive constant. (a) Find the population covariance between X and Y. (b) Find E(YIX x). (c) Find V(YIX x).

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