Wednesday, June 11, 2014

Monty hall problem - Choose the Correct Door

Problem

On the game show "Let's make a deal", Monty Hall (the host) walks up to a contestant and gives them $100 unless they want to play "the three doors". They usually turn down the money and play "the three doors". Now behind one of the doors is an enourmous cash prize, behind the other too are silly prizes such as a years supply of toilet paper or a goat. So Monty asks this same contestant to pick a door, which they do. Then, before opening the chosen door and revealing what's behind it, he opens one of the other doors which reveals one of the lesser prizes. Monty then gives this contestant the option of staying with their chosen door or switching to the other door which still remains closed. The contestant then decides what to do and is rewarded with whatever prize is behind the door they finally chose. So the question is, should the contestant switch or stay?

Solution

http://en.wikipedia.org/wiki/Monty_Hall_problem

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