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7. Suppose the cdf (Notice: not pmf!) for rv X is wwwwww X P(X) 1 0.2 2 3 4 0.6 0.9 1 a) Computer

7. Suppose the cdf (Notice: not pmf!) for rv X is wwwwww X P(X) 1 0.2 2 3 4 0.6 0.9 1 a) Computer E(X) and V(X) b) If Y=-2X+3, Computer E(Y) and V(Y) I

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