Mathematics, 12.08.2021 20:20, karen4764

Let X1 and X2 be independent random variables. Suppose the mean and variance of X1 are 1 and 1, respectively. Suppose, the mean and variance of X2 are 4 and 8 respectively. What is the standard deviation of X2 - 3X1

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Let X1 and X2 be independent random variables. Suppose the mean and variance of X1 are 1 and 1, resp...