Answer:
b. False
While the Poisson probability distribution is commonly used to model arrival rates in queuing problems, it is not always the case. There are other probability distributions that can be used to model arrival rates, depending on the specific characteristics and assumptions of the queuing system. For example, if arrivals follow a regular pattern or have certain dependencies, other probability distributions like the exponential or deterministic distribution may be more appropriate. So, it is not accurate to say that arrival rates in queuing problems are always described by the Poisson probability distribution.
Step-by-step explanation: