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  3. 3 customers at two creek coffee house spend an average...

Question: 3 customers at two creek coffee house spend an average...

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3. Customers at Two Creek Coffee House spend an average of 3 minutes waiting in line to place their order and an average of 4 minutes waiting while their drinks are being made. Assume that both wait times are exponentially distributed: if the average wait time is A, then the wait time has probability density function fA(t)-for t 20 Assume also the wait times are independent of each other. Sketch overlapping plots of the probability distribution functions for the wait times. What is the probability that a customer waits less than 5 minutes total? y function fa(t) t
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