I agree also with gooner, you can not give a true figure of how many people one sends to a Poker or Casino site to get a depositor because there are too many factors involved.
Somewhere in the 50 range seems right, however there are so many factors that it's hard to put a blanket number on it. Factors like:
- how did a person find your site
- what your site says and how it looks
- the programs ability to convert traffic
- etc.