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Customers arriving at a checkout counter of a supermarket are Poisson distributed at the rate of
one every four minutes. What is the variance associated with 5 customer arriving at the
checkout?
Explain this problem to me. I already know the answer is 80. but I do not understand the theory
behind this

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Customers arriving at a checkout counter of a supermarket are Poisson.pdf

  • 1. Customers arriving at a checkout counter of a supermarket are Poisson distributed at the rate of one every four minutes. What is the variance associated with 5 customer arriving at the checkout? Explain this problem to me. I already know the answer is 80. but I do not understand the theory behind this