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a If X takes on the values 0 1 2

(a) If X takes on the values 0, 1, 2, and 3 with probabilities 1/125, 12/125, 48/125 , and 64/125 , find E(X) and E(X2).

(b) Use the results of part (a) to determine the value of E[(3X + 2)2].

(b) Use the results of part (a) to determine the value of E[(3X + 2)2].

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