Question: Question 20 (1 point) In the library, students arrive randomly at the help desk, which is staffed by 1 employee. The time required for inquiry

Question 20 (1 point) In the library, students

Question 20 (1 point) In the library, students arrive randomly at the help desk, which is staffed by 1 employee. The time required for inquiry varies from student to student. Arrivals have been found to follow a Poisson process (i.e., exponentially distributed inter-arrival times), and the service times follow an exponential distribution. The average arrival rate is 12 students per hour, and the average service rate is 20 students per hour. What is the utilization of the help desk? 20% 40% 50% 60% 30%

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