Question: X 1 2 3 4 5 p 0.1 0.2 0.3 0.1 0.3 Part a Find a lower bound for the weighted mean(note: the weighted mean

X 1 2 3 4 5

p 0.1 0.2 0.3 0.1 0.3

Part a

Find a lower bound for the weighted mean(note: the weighted mean is E(X))

Part B

Find the lower bound of the standard deviation of the random variable

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