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Patients arrive at the emergency room of Costa Val-ley Hospital at an average of 5 per...

Patients arrive at the emergency room of Costa Val-ley Hospital at an average of 5 per day. The demand for emergency room treatment at Costa Valley fol-lows a Poisson distribution. (a) Using Appendix C, compute the probability of exactly 0, 1, 2, 3, 4, and 5 arrivals per day. (b) What is the sum of these probabilities, and why is the number less than 1?

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Answer #1

In part b) since there may arrive more than 5 patients, so probability can’t be 1.

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