Hypergeometric distribution

[Raven]

Bengt Richter wrote:


> ISTM you wouldn't get zero if you scaled by 10**significant_digits (however many
> you require) before dividing. E.g., expected hits per trillion (or septillion or whatever)
> expresses probability too. Perhaps that could work in your calculation?
>
> Regards,
> Bengt Richter

Sorry but I can't figure out how to do it, can you give me an example
please? 
Thnx

Ale