SOLUTION: If new cases of West Nile Disease in New England are occurring at a rate of about 2 per month, then what’s the probability that exactly 4 cases will occur in the next 3 months?

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Question 1011721: If new cases of West Nile Disease in New England are occurring at a rate of about 2 per month, then what’s the probability that exactly 4 cases will occur in the next 3 months?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Expect 6 cases in 3 months
probability of 4 cases is e^(-6)6^4/4! =0.1339