| Single-Server Waiting Line Model |
| Assumptions |
| Poisson Arrivals |
| Exponential Service Times |
| Arrival Rate |
| Service Rate |
| Operating Characteristics |
| Probability that no customers are in the system, P0 | | ERROR:#DIV/0! |
| Average number of customers in the waiting line, Lq | | ERROR:#DIV/0! |
| Average number of customers in the system, L | | ERROR:#DIV/0! |
| Average time a customer spends in the waiting line, Wq | | ERROR:#DIV/0! |
| Average time a customer spends in the system, W | | ERROR:#DIV/0! |
| Probability an arriving customer has to wait, Pw | | ERROR:#DIV/0! |