A Javascript simulator to help kids (and adults) to understand the problem
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greenido Merge pull request #5 from greenido/glitch
πŸ‡ Added few nice images
Latest commit 66c112e Jul 26, 2018


The Monty Hall problem - πŸš—|🐐|🐐

The Monty Hall problem is a brain teaser, in the form of a probability puzzle, loosely based on the American television game show Let's Make a Deal and named after its original host, Monty Hall.

Live Demo Of The Simulator

Learn With A Video

The Idea

The given probabilities depend on specific assumptions about how the host and contestant choose their doors. A key insight is that, under these standard conditions, there is more information about doors 2 and 3 that was not available at the beginning of the game, when the door 1 was chosen by the player: the host's deliberate action adds value to the door he did not choose to eliminate, but not to the one chosen by the contestant originally. Another insight is that switching doors is a different action than choosing between the two remaining doors at random, as the first action uses the previous information and the latter does not. Other possible behaviors than the one described can reveal different additional information, or none at all, and yield different probabilities.

Made by Ido Green

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