A question of odds
Hello math gurus, here's one for ya.
I'm one of the 50 finalists for the Green Science Instructable competition ( yay me - a pleasant surprise to get this far! ) , there are a total of 18 prizes, what are the odds of me winning a prize? If there was just one prize even I could work out that I'd have a one in 50 chance, but I don't know how to figure the complexity of multiple prizes. I'd appreciate an answer, please show your workings :-) Cheers,