[ProgClub list] AI class, Monty Hall

John Elliot jj5 at progclub.org
Wed Oct 19 10:17:11 AEDT 2011

Here's something amusing:


Monty Hall didn't understand the Monty Hall problem! :)

The first time I came across the Monty Hall problem I didn't understand 
it either. I had to write a simulation and see it work for myself. After 
writing the simulation, I believed, but I didn't understand. Eventually 
I figured it out and now I understand how it works.

For those who haven't heard of the Monty Hall problem, check it out:


The trick is that the door that's containing the prize can't be opened 
and the door you are standing in front of can't be opened. So the first 
time you make a choice you are choosing from one in three. If you switch 
you are then choosing from one in two, which is better odds. If you 
don't switch you keep your guess as one in three.

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