operatios research questions

please answer showing the solution

Always, if the queue in the queuing system empty, the facility becomes idle until a new customer arrives Select one: True False A priority rule selects the best customer to be served Select one True False Short queue lengths typically mean not enough capacity Select one: True False The format (a/b/cd/e/f) that being used for summarizing the characteristics of t situation is known as notation Answer: Kendall I if babies are born in a large city at the rate of 50 birth every minutes. Then the interarrival time between births is minutes Answer: 0.02