Quote:
Originally Posted by Baph
Taken from the first link you posted:
It all hinges on the basis that the host (at least) knows where the car is.
PS. I'm a java developer, so no, I don't know how to program a computer  |
Did you read the original question properly?
Quote:
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Suppose you're on a game show, and you're given the choice of three doors. Behind one door is a car, the others, goats. You pick a door, say #1, and the host, who knows what's behind the doors, opens another door, say #3, which has a goat. He says to you: 'Do you want to pick door #2?' Is it to your advantage to switch your choice of doors?
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The host knows what's behind the doors. Therefore you have a 2/3 probability of getting the car if you change your mind.
You fell into the trap set by the writer of the question, which was to assume that you have a 50/50 chance, rather than working out what would really happen.