Question: Expected value. Find the expected value of each random variable: a) x 0 1 2 P(X = x) 0.2 0.4 0.4 b) x 100 200

Expected value. Find the expected value of each random variable:

a) x 0 1 2 P(X = x) 0.2 0.4 0.4

b) x 100 200 300 400 P(X = x) 0.1 0.2 0.5 0.2

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