Problem 7. Suppose X and Y are random variables with E(X) = 2 and E(Y) = 3, and that Y takes only nonnegative values. (a) Compute the expected value
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Problem 7. Suppose X and Y are random variables with E(X) = 2 and E(Y) = 3, and that Y takes only nonnegative values. (a) Compute the expected value of 2X + 3Y. (b) Is it possible that P(Y Z 9) = %? Based on the information in the problem, what is the largest possible value of P(Y 2 9)?

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