Question: (5 points) Let a (5 points) Let a X b with a 0. Show a SD(X) b 11. Where SD(X) is the standard deviation of

(5 points) Let a

(5 points) Let a X b with a 0. Show a SD(X) b 11. Where SD(X) is the standard deviation of X. Use the formulas for expected value and variance learned from this chapter. Hint: Expected value is a linear operator. (5 points) Derive the formula to compute the variance of a Bernoulli random variable.

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