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

Expected value Find the expected value of each random variable:

a) b) Chapter Exercises x 10 20 30 P(X = x) 0.3 0.5 0.2 x 100 200 300 400 P(X = x) 0.1 0.2 0.5 0.2 x 0 1 2 P(X = x) 0.2 0.4 0.4 x 2 4 6 8 P(X = x) 0.3 0.4 0.2 0.1 b)

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