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(5 points) Let I be a random variable which has mean u = 3 and variance o2 = 3. (a) What is E(4V + 7)?

(5 points) Let I be a random variable which has mean u = 3 and variance o2 = 3. (a) What is E(4V + 7)? (b) What is Var(4 - 7V)

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