SOLUTION: A computer salesman averages 0.9 sales per week. Use the Poisson distribution to find that in a randomly selected week the number of sales sold is 1.

Question 1055939: A computer salesman averages 0.9 sales per week. Use the Poisson distribution to find that in a randomly selected week the number of sales sold is 1.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The mean and the variance of the Poisson are the same, and 1 is very near the mean, so there should be a reasonably significant probability, although the variance/sd are both 1. There will be a significant tail
P(1)=e(^-0.9)(0.9)^1/1!
That is 0.9*e^(-0.9)=0.3659

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