SOLUTION: a sales firm receives an average of four calls per hour on its toll free number for any given hour find the probability that it will recieve exactly nine calls use the poisson dist

Algebra ->  Probability-and-statistics -> SOLUTION: a sales firm receives an average of four calls per hour on its toll free number for any given hour find the probability that it will recieve exactly nine calls use the poisson dist      Log On


   



Question 368125: a sales firm receives an average of four calls per hour on its toll free number for any given hour find the probability that it will recieve exactly nine calls use the poisson distribution
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Using the poisson distribution, the probability that it will recieve exactly 9 calls IN AN HOUR is given by P%289%29+=+e%5E-4%2A%284%5E9%2F9%21%29+=+0.0132312