-
In a single-channel queuing model, the customer arrival rate is 12 per hour and the serving rate is 24 per hour. The expected time that a customer is in queue is minutes.
-
- 2.1min
- 2.5 min
- 3.5 min
- 2 min
Correct Option: B
λ = 12 /hr, μ = 24 /hr
| ρ = | = | = 0.5 | ||
| μ | 24 |
Expected time that the customer in the queue
| Wq = | = | ||
| λ | λ |
| = | - ρ | = | - 0.5 | ||
| 1 - ρ | |||||
| λ | 12 | ||||
| = | hr = | × 60 min | ||
| 12 | 12 |
= 2.5 min
