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(4) Binomial Probability Distribution with random variable X (a) Explain why the distribution below satisfies the two rules for a probability distribution. X Prob(x) 0

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(4) Binomial Probability Distribution with random variable X (a) Explain why the distribution below satisfies the two rules for a probability distribution. X Prob(x) 0 490 .050 2 .320 W .075 4 .065 (b) What is the probability that x is 1 or 2 or 3? That is, find Prob(X=1 or X=2 or X=3)

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