Let X and Y be two independent random variables. Let Y=−2X+15. If μX=74 and σX=14, find the mean and the standard dev

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answerhappygod
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Let X and Y be two independent random variables. Let Y=−2X+15. If μX=74 and σX=14, find the mean and the standard dev

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Let X and Y be two independent random variables.
Let Y=−2X+15. If μX=74 and σX=14,
find the mean and the standard deviation of Y.
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