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 Pick a box! (Posted on 2002-03-28)
You are shown three boxes, and told that one of them contains a prize. You are then asked to pick one box, and if that box is the one with the prize, you will win it. After picking a box, you are shown that one of the other two boxes is empty, and offered a chance to change your selection.

Should you do this? Would changing your choice to the other remaining box affect your odds of winning? Why or why not?

 See The Solution Submitted by levik Rating: 4.2857 (14 votes)

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 Solution | Comment 38 of 42 |
You will have a fifty-fifty chance regardless of which box you pick first, because after you pick, you are already shown that you did not pick one of the two incorrect boxes--therefore, you either do or don't have the correct box, and have a 50% chance of having the correct box, whether you guessed correctlt the first time or not.
 Posted by Stephen Ticsay on 2005-04-16 04:08:18

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