SOLUTION: Suppose that the average number of students to ride the elevator is 2.4 persons per 10 minutes during the week (does not matter what time, nor the day). What is the probability t

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Question 364405: Suppose that the average number of students to ride the elevator is 2.4 persons per 10 minutes during the week (does not matter what time, nor the day).
What is the probability that less than 4 students ride the interval today from 11:00 – 11:10?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
This is a poisson experiment with mu+=+2.6. Then P%28x%29+=+e%5E%28-mu%29%2A%28mu%5En%2Fn%21%29. Hence the probability is