The B3TA Detective AgencyUniversalpsykopath tugs our coat and says: Tell us about your feats of deduction and the little mysteries you've solved. Alternatively, tell us about the simple, everyday things that mystified you for far too long.
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Scaryduck LIKES EGG, Thu 13 Oct 2011, 12:52)
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This is the usual reasoning:You have a 2 in 3 chance of having picked a door with a cabbage. If this is so, then there's one door with a cabbage and one with a car left. Given that the host has shown you one with a cabbage, the other one will have the car.
You have a 1 in 3 chance of having picked the door with the car. If this is so, then you'll get a cabbage by changing.
Changing gives you a 2/3 chance of getting the car, and staying gives you a 1/3 chance. Thus you should change.
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But actually it depends why the host picked a door with a cabbage behind it (ie do they know where the car is, and do they want you to win or lose). See en.wikipedia.org/wiki/Monty_Hall_problem
(, Sat 15 Oct 2011, 19:30, Reply)
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