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Suppose X is a random variable with mean 5 and standard deviation 10. Suppose Y is a random variable with mean 2 and standard deviation

Suppose X is a random variable with mean 5 and standard deviation 10. Suppose Y is a random variable with mean 2 and standard deviation 5. The variance of X + Y is: 125, but only if X and Y are independent 15, but only if X and Y are independent 125 O 15
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Suppose X is a random variable with mean 5 and standard deviation 10. Suppose Y is a random variable with mean 2 and standard deviation 5 . The variance of X+Y is: 125, but only if X and Y are independent 15, but only if X and Y are independent 125 15

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