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Consider the following probability mass function for this problem. X 31 p(x) 0.20 0.50 0.15 0.10 a.) Verify that this is an appropriate pmf. b.)

Consider the following probability mass function for this problem. X 31 p(x) 0.20 0.50 0.15 0.10 a.) Verify that this is an appropriate pmf. b.) What is E(X)? C.) What is V(X)? d.) What is P(X > 2)? e.) What is the cumulative distribution function

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