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1. Suppose we have a frequency function for two variables X and Y, f(x,y) = xty for x = 0, 1, 2 and 30 y

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1. Suppose we have a frequency function for two variables X and Y, f(x,y) = xty for x = 0, 1, 2 and 30 y = 0, 1, 2, 3. a. Determine the marginal distributions of X and Y. b. Determine E(X) and E(Y). c. Determine E(X + Y). d. If Z = 2X + 10, determine E(Z). Determine E(XY). f. Determine cov(X, Y). g. Are ) and Y independent? Justify your

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