engineering recuitment UPPSC AE Mock Test 2024 Industrial Engineering Operations Research Queueing Theory
In a telephone booth, the telephone calls arrive following Poisson distribution with average times of 9 minutes between two consecutive arrivals. The length of time call is exponentially distributed with a mean time of 3 minutes. The average waiting time of the queue in minutes is:
1
0.5
2
1.5
3
2
4
2.5