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Let X be a discrete random variable with mean 3 and standard deviation 2, let Y1=2X+3 and Y2=3X-2. Find the mean and variance of Y1 and Y2.?

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  • Let X be a discrete random variable with mean 3 and standard deviation 2, let Y1=2X+3 and Y2=3X-2. Find the mean and variance of Y1 and Y2.?


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