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5. Consider the following discrete probability distribution. x P(X=x) 0 0.3 1 0.15 2 0.5 3 0.05 a. Is this a valid probability distribution? b.

5. Consider the following discrete probability distribution. x P(X=x) 0 0.3 1 0.15 2 0.5 3 0.05 a. Is this a valid probability distribution? b. What is the probability that the random variable X is greater than 1? c. Find the expected value of X

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