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Customer arrivals at a checkout counter in a department store are, on average, 8 per hour....

Customer arrivals at a checkout counter in a department store are, on average, 8 per hour.

  1. For a given hour find the probability that at least 2 customers arrive.
  2. Suppose that the number of customers arrive during each hour is measured continuously for 6 hours. What is the probability that out of those 6 hours, there are at least 2 hours with more than 2 customers arrive? State the appropriate distributions for both questions.
Math   Statistics-And-Probability   
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