Question: 7 . The probability mass function of the r.v.x is x -2 1 f(x) = P(X=x) 0.15 0.45 2 0.3 3 0.10 The P(X is

7 . The probability mass function of the r.v.x is x -2 1 f(x) = P(X=x) 0.15 0.45 2 0.3 3 0.10 The P(X is at most -2) is 0.6 AO 0.9 BO 1 CO 0.15-DO 7 10 2 7 10

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