SOLUTION: Given that x has a poisson distribution with (mean) u=7, what is the probability that x=1?

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Question 473356: Given that x has a poisson distribution with (mean) u=7, what is the probability that x=1?
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
P%28X=x%29=expr%28mu%5Ex%2Fx%21%29e%5E%28-mu%29

Substitute m = 7, x = 1,

P%28X=1%29=expr%287%5E1%2F1%21%29e%5E%28-7%29

P%28X=1%29=expr%287%2F1%29e%5E%28-7%29

P%28X=1%29=7e%5E%28-7%29

.0065831738

Edwin