Question

You're on a gameshow on tv.Onthisshow theidea is to win a car as a prize.Host shows you three doors. He says that there is a car behind one of the doors and there are goats behind the other two doors.He asks you to pick a door.You pick a door but the door is not opened.Then host opens one of the doors you didn't pick to show a goat (cause he knows what is behind the doors). Then hesaysthatyouhaveonefinal chance to change your mind before the doors are opened and you get a car or a goat.So he asks you if you want to change your mind and pick the other unopened door instead. What should you do?

Answer 1

This is the Monty Hall Problem. Always switch doors. Contrary to common sense, this gives you a 2/3 probability of winning the car.

Answer 2

monte monte monte

Answer 3

http://homepages.sover.net/~nichael/puzzles/monty/

Answer 4

good explanation here

Answer 5

you can try it for yourself here
http://www.stat.sc.edu/~west/javahtml/LetsMakeaDeal.html