Which of the following is not a measure of a queue's performance?

A) average time spent in queue
B) average queue length
C) probability that service facility will be idle
D) utilization
E) All of the above are performance measures.

Queue's Performance

The effectiveness of a queuing system as measured by various metrics, such as waiting times, queue lengths, and service level.

Average Time

The mean value of a set of times taken for the completion of tasks or occurrences of an event.

Performance Measures

Criteria or indicators used to assess the effectiveness, efficiency, or quality of a product, service, or process.