Question: a. Compute the covariance between X and Y in Exercise 9. b. Compute the correlation coefficient r for this X and Y. fY ( y)

a. Compute the covariance between X and Y in Exercise 9.

b. Compute the correlation coefficient r for this X and Y.

fY ( y) 5 e 2y 0 # y # 1 0 otherwise fX(x) 5 e 3x2 0 # x # 1 0 otherwise

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