For many waiting line situations, the arrivals occur randomly and independently of other arrivals and it has been found that a good description of the arrival pattern is provided by a

Poisson Probability distribution.

Step-by-step explanation:

We are told that arrivals occur randomly and independently of other arrivals. This can be analyzed with Poisson Probability distribution because In statistics Poisson distribution is simply a statistical distribution that shows the number of times an event will likely occur within a specified amount of time.

This distribution is normally used for independent events which occur at a constant rate within a given time interval.

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step-by-step explanation: