Numbers

[Ruth541]

On a recent episode of Numbers on ITV1 Charlie used a card trick to demonstrate probability to his students. Can anyone remember how the trick worked to show the chances of his turning a winning card on the second turn. I just remember that it wasn't as simple as 1:2 chance.

[LeMarchand]

I think the episode you mean is "Man Hunt" - the last ep of Season 1 (with the prison bus crash). Anyway, there's an explanation of the problem on Wikipedia.

They seem to have realised that the show might get some people interested in the math, so as of Season 2 CBS started their own "follow up" page - it's aimed mainly at teachers and parents, but is worth a look: Numb3rs Activities