Customers are serviced at a rate of customers per hour

Question

Customers are serviced at a rate of 10 customers per hour according to an exponential distribution. What is the probability that customer service will require fewer than two minutes?

A) less than or equal to 0.25

B) greater than 0.25 but less than or equal to 0.30

C) greater than 0.30 but less than or equal to 0.35

D) greater than 0.35

Answer

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