> http://en.wikipedia.org/wiki/Monty_Hall_problem > > Thus the chances of winning by switching are 50/50. > > Anyone agree? To be honest, I still don't fully understand. I've never seen the show so perhaps there's something I'm unaware of (the article says that the past can't be ignored and talks about host behaviour and I haven't grasped the relevance of that). If you have a choice to make between two doors, then the odds must be 50:50 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist