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jaredmt
Aug8-08, 01:45 AM
im just curious. it has been bugging me about the beginning of the movie where the professor asks Ben a question and he goes into analysis. it didnt make sense to me

he said that if u had to pick from 3 choices u have a 1/3 chance. but then they take away 1 of the incorrect choices. so the professor asks "would you change your decision?" and Ben said "yes" because if he does, he would have a 2/3 chance of getting the right choice. it seems to me like it would be a 50/50 chance regardless of which choice he picked. or maybe i didnt hear the explanation correctly i dont know, can any1 explain this to me?

maybe i should watch that scene again cus that logic doesnt make sense to me at all, i must have heard it wrong

nicksauce
Aug8-08, 01:50 AM
This is known as the Monty Hall Problem.

Please read http://en.wikipedia.org/wiki/Monty_Hall_problem
And this recent thread http://www.physicsforums.com/showthread.php?t=248052

And come back with any further questions, should you have any.