Question: Collina s Italian Caf in Houston Texas advertises that carryout orders

Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website, February 27, 2008). Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution with a mean of 25 minutes.
a. What is the probability than a carryout order will be ready within 20 minutes?
b. If a customer arrives 30 minutes after placing an order, what is the probability that the order will not be ready?
c. A particular customer lives 15 minutes from Collina’s Italian Café. If the customer places a telephone order at 5:20 P.M., what is the probability that the customer can drive to the café, pick up the order, and return home by 6:00P.M.?


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  • CreatedFebruary 16, 2015
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