Question: 1. (5 points) Let a / > 0. Show a - u (5 points) Let a S X S b with a 0. Show a

(5 points) Let a / > 0. Show a - u

(5 points) Let a S X S b with a 0. Show a p S SD(X) S b '1. 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.

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