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The number of traffic accidents per week in a small city has a Poisson distribution with the standard deviation of 2. 1. What is the

The number of traffic accidents per week in a small city has a Poisson distribution with the standard deviation of 2. 1. What is the probability of exactly 2 accidents occur in one week? 2. What is P(1 s X s 3)? 3. What is P(X 2 2|X s 5)

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