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Type your answer. Let X1 and X2 be independent random variables with means #1 = 6 and p2 = -6, and variances 0'? = 16

Type your answer. Let X1 and X2 be independent random variables with means #1 = 6 and p2 = -6, and variances 0'? = 16 and 0% = 13, respectively. Let Y = 7X1 + -4X2. What is the variance of Y

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