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Sunday, February 20, 2005

Answer to Monty Hall Brain Teaser

If you haven't seen the question yet, please see the earlier post....


Answer below...

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Answer:

You should switch doors to improve your chances.

Here's the logic:

1 - When you first choose your door, you have a 1 in 3 chance of getting the car.
2 - No matter which door you choose, Monty Hall will open a door with a goat.
3 - This leaves 2 doors, one with the car and the other with a goat.
4 - At this point, if you stay with your first choice, you still have 1 in 3 chance of winning because you made your initial choice with 3 doors. Nothing has changed here.
5 - If you switch though, it improves to a 2 in 3 proposition.

Got it?

If not, here's a good link to explain further....

http://www.remote.org/frederik/projects/ziege/loesung.html

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I'm always on the lookout good brain teasers - If you have a good one, please send it to me mehavecable@yahoo.ca).

1 comment:

Anonymous said...

Wahoo, I got it!