Question

Waiting times to receive food after placing an order at the local Subway sandwich shop follow...

Waiting times to receive food after placing an order at the local Subway sandwich shop follow an exponential distribution with a mean of 72 seconds. Calculate the probability a customer waits:

a.Less than 28 seconds. (Round your answer to 4 decimal places.)

b. More than 136 seconds. (Round your answer to 4 decimal places.)

c. Between 35 and 82 seconds. (Round your answer to 4 decimal places.)

d. Fifty percent of the patrons wait less than how many seconds? What is the median? (Round your answer to 2 decimal places.)

Math   Statistics-And-Probability   
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