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The probability mass function of the r.v.x is: 1 f(x) = P(X=x) -2 0.15 2 0.3 3 0.10 0.45 The expected value E(x) is

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The probability mass function of the r.v.x is: 1 f(x) = P(X=x) -2 0.15 2 0.3 3 0.10 0.45 The expected value E(x) is

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