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Mathematics, 02.12.2019 23:10

The average number of customers served by the copy shop during a typical morning (9am to noon) is 12. one morning, the copy shop has to close for 15 minutes. what is the probability that no customers will arrive during this 15 minute period?

x = number of customers

a. x ~ binomial

b. x ~ negative binomial

c. x ~ hypergeometric

d. x ~ poisson

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