Question

How to identify the Poisson Probability??? (an average) ... How to calculate the mean for poisson???

Answer 1

Identification of Poisson Probability:

Thus, the formula to calculate poisson probability is:

P(X =x) =e*^x/x!

Calculation of mean for poisson:

Thus, the formula to calculate the mean, for poisson is:

=C^{1/(X2 - X1)}

(where C =X2! /X1!)

For example, if X2 =2 and X1 =1, then C =2!/1! =2*1/1 =2.

So, the mean is =2^{1/(2 - 1)} =2^1/1 =2 provided P(X =1) =P(X =2)