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

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 Click here to see ALL problems on Probability-and-statistics 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 distributionAnswer by robertb(4012)   (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