Consider a random variable Y = 2X + 7, where X is a random variable with mean 3 and standard deviation 2. What is Var(Y)

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answerhappygod
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Consider a random variable Y = 2X + 7, where X is a random variable with mean 3 and standard deviation 2. What is Var(Y)

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Consider a random variable Y = 2X + 7, where X is a random
variable with mean 3 and standard deviation 2.
What is Var(Y)?
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