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Question: 5 the number of people entering a store in a...

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5. The number of people entering a store in a given hour is claimed to have a Poisson distribution with a mean (lambda) of 5 a. What is the probability that exactly five people will enter the store in one hour? b. Less then five? c. More than five? d. How many people (N) must enter the store in one hour before you should be surprised? (The probability of this event is less than 5%.) Explain. Mention the difference between one and two tailed distributions
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