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Danske matematikere forudsiger Melodi Grand Prix-vinder

Danske matematikere forudsiger Melodi Grand Prix-vinder | Matematikundervisning | Scoop.it
Studerende bruger matematik til at forudsige resultatet af Melodi Grand Prix-finalen.
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Monty Hall problem - Wikipedia, the free encyclopedia

The Monty Hall problem is a probability puzzle loosely based on the American television game show Let's Make a Deal and named after the show's original host, Monty Hall. The problem, also called the Monty Hall paradox, is a veridical paradox because the result appears impossible but is demonstrably true. The Monty Hall problem, in its usual interpretation, is mathematically equivalent to the earlier Three Prisoners problem, and both bear some similarity to the much older Bertrand's box paradox.

The problem was originally posed in a letter by Steve Selvin to the American Statistician in 1975 (Selvin 1975a) (Selvin 1975b). One well known statement of the problem was published in Marilyn vos Savant's "Ask Marilyn" column in Parade magazine in 1990 (vos Savant 1990a):

Vos Savant's response was that the contestant should switch to the other door. Contestants who switch have a 2/3 chance of winning the car, while contestants who stick have only a 1/3 chance.

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