talk show host problem or what they call it

ming

New Member
in the movie, they pretty much force the guy to join the team because of his answer to what i personally think of as a questionable math problem.
you have 3 boxes with one prize and 2 that cointains nothing. the show host shows one of the empty boxes, and asks you to make your choice. that leaves you with 2 boxes, out of which one contains a prize and the other one does not. now how can your chances of picking the right one NOT be 50/50?
i have discussed it with my math teacher but never gotten a satisfactory answer.
 
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