Posted by **Alexander** on Sunday, June 17, 2012 at 1:44pm.

A professor receives, on average, 8 emails from students on the day before an online quiz. If the distribution of the calls is Poisson, what is the chance that he received at least 6 and at most 10 emails on such a day?

- Statistics -
**MathGuru**, Sunday, June 17, 2012 at 6:14pm
Poisson distribution (m = mean):

P(x) = e^(-m) m^x / x!

Values:

x = 6,7,8,9,10

m = 8

Substitute and calculate for each x. Add all those calculations together for a total probability.

I hope this will help.

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