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Jerry W. Lewis
 
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Default Poisson Distribution

Prob(Xx) = 1-Poisson(x,lambda,TRUE)
or see Ian Smith's comp_cdf_poisson function
http://members.aol.com/iandjmsmith/examples.xls

Jerry

"Capote" wrote:

How do I form a (more than) probability using the Poisson function in Excell.
I understand the equal to and less than but can only do the (more than) as
individual probabilities "one a t a time"?