If X and Y are two independent variables and their variances are 15 and 8 respectively, find the standard deviation of (2X - 3Y).
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Variance of 2X - 3Y = (2^2) * Variance(X) + (-3^2) * Variance(Y) Variance of 2X - 3Y = 4 * 15 + 9 * 8 Variance of 2X - 3Y = 60 + 72 Variance of 2X - 3Y = 132 Show more…
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