Question: Let X be a random variable with a variance of 0.5, and let Y be a random variable with a variance of 9.5. Let the

Let X be a random variable with a variance of 0.5, and let Y be a random variable with a variance of 9.5. Let the covariance of X and Y be equal to half of the variance of X. Find the variance of 3X+Y . Answer: Var(3X+Y ) =

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