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Anyone see the movie 21?

  1. Aug 8, 2008 #1
    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
  2. jcsd
  3. Aug 8, 2008 #2


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