you are correct
I deleted the post so it does not confuse anyone
I was trying to say what you just said
but clearly failed to do so
--- In vpFREE@yahoogroups.com, "vp_wiz" <harry.porter@...> wrote:
>
> --- In vpFREE@yahoogroups.com, "drwusa" <drwusa@> wrote:
> > FWIW --
> >
> > a binomial distribution is appropriate for the distributions
> > produced by frequent events like coin fliping.
> >
> > for rare events like getting deuces-- poisson is appropriate
>
> FWIW - Everything I've grasped to date would have suggested that given a fixed trial and a known probability of the event in question, binomial will yield a precise probability of "n" occurrences of the event (as well as probabilities for questions such as "at least" and "no more than"), whereas poisson yields only an approximation.
>
> But I'm always looking for an education ... I'll review the topic further and report back.
>
> - H.
>
