Let’s Make A Deal!
July 24, 2009
Let’s Make A Deal! was a television game show that originated in the United States in the 1960s and has since been produced throughout the world. In one of the games, prizes were placed behind three doors, and the contestant was asked to pick a door; one door hid an automobile, the other two doors hid goats. Then the host, who knows what is behind the doors, opened one of the doors that the contestant did not pick, revealing in every case a goat, and asks if you want to switch doors. Is it to your advantage to switch your choice of doors?
Your task is to write a program that simulates a large number of games and determines whether or not it is to your advantage to switch doors. What are the odds that you will win the automobile by switching? When you are finished, you are welcome to read or run a suggested solution, or to post your solution or discuss the exercise in the comments below.
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