My math is simply too rusty to even know whether or not there is an answer to the question.

I'm that old that I'd nearly forgotten the question I was about to ask.

Heard about the professional golfer who employed a 90 year-old caddie whose eyesight was sensational? Could see where his ball landed from 300 meters! Only problem was, when the caddie got to where his ball landed he'd forgotten!!

O.K. The serious Math question?

Taking roulette as an example, if I knew that red was going to land 72% of the time (well we all wish we could find a system like that) is there a mathmatical way of calculating a 'run of outs'? Is there a formula for calculating the chance that black numbers will land in succession two, three,four,five etc times in a row?

For the purpose of the example, forget '0's exist.

Any help would be appreciated from younger members of the forum.