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It is assumed that there is an average of 12 customers per hour at a service...

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Statistics


It is assumed that there is an average of 12 customers per hour ata service counter according to a Poisson process.

a) How likely is it that 4 customers show up at this counter inthe next 15 minutes?

b) Given that 4 customers showed up at this counter in a given15-minute period, what is the probability that there were at least2 customers that showed up in the last 5 minutes of thisperiod?

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