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Let x1 ~ N{2,12} and x2 ~ m1, 2?} be two numal random variables. Assume that X1 and X2 are independent. Let Y = 3X1

Let x1 ~ N{2,12} and x2 ~ m1, 2?} be two numal random variables. Assume that X1 and X2 are independent. Let Y = 3X1 X2. What is the value of 5d( Y)? A)2.236 B}1 c}s D)1 32.646 F) 3.606

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