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Find the expected value for the random variable X. X -3 1 3 9 12 P(X = x) 0.22 0.14 0.23 0.2 0.21 3.8

Find the expected value for the random variable X. X -3 1 3 9 12 P(X = x) 0.22 0.14 0.23 0.2 0.21 3.8 2.69 4.35 O 1.97 4.49 5.15

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