A company has 20 copy machines and every day there is a 5 percent chance for each machine that it will not be working that day. If the company wants to calculate the probability of, say, 2 machines not working, it should use the Poisson distribution.

Question

Quizplus · Accepted Answer

The situation described involves a fixed number of trials (20 machines) with two possible outcomes (working or not working) for each trial, which is better modeled by a binomial distribution, not a Poisson distribution.

A Company Has 20 Copy Machines and Every Day There