The common measures of a queuing system's performance include
◦ probability that the service facility will be idle, average queue length, probability that the waiting time will exceed a specified duration.
◦ average time that the service facility is idle, minimum queue length, probability that the waiting time will exceed a specified duration.
◦ average time each customer spends in the system, probability that the service system will be idle, average time each customer spends in the queue.
◦ average time each customer spends in the system, maximum queue length, probability of a specific number of customers in the system.
◦ average queue length, maximum time a customer may spend in the queue, the utilization factor for the system.
The lymphatic system in humans.
Gastrointestinal system
The digestive system.
Caste System
Two common types of seed germination
Basalt is the most common type of stone used in hot stone therapy.