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The company has determined that during the late-evening hours on weeknights, customers request cabs at a rate that follows the Poisson distribution with a mean of 8 per hour. Service time is exponential with a mean of 30 minutes per customer. Assume that there is one customer per cab.
Answer Questions 25-27.
What is the percentage of time that each cab is idle?
Group of answer choices80 %
40%
60%
90%
What is the average number of customers waiting in line for getting a cab (LqLq)?
Group of answer choices2.892.47
1.31
0.58
2.31
What is the average waiting time for the customers in line (WqWq)?
Group of answer choices17.3 minutes9.8 minutes
18.5 minutes
4.3 minutes
21.7 minutes