Question: Expected value. Find the expected value of each random variable: a) x 10 20 30 P(X = x) 0.3 0.5 0.2 b) x 2 4

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

a) x 10 20 30 P(X = x) 0.3 0.5 0.2

b) x 2 4 6 8 P(X = x) 0.3 0.4 0.2 0.1

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