Monty Hall Problem in Ask Marilyn

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A letter from Craig. F. Whitaker of Columbia to the "Ask Marilyn" column in the parade magazine in 1990 asks, "suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice?" Marilyn vos Savant had answered that you should switch every time. An easier way to explain, she added, was "suppose there are a million doors, and you pick door #1. Then the host, who knows what’s behind the doors and will always avoid the one with the prize, opens them all except door #777,777. You’d switch to that door pretty fast, wouldn’t you?" However, readers weren't convinced. Marilyn vos Savant started receiving criticism. Each day she was receiving tons on mail, phone calls, and fax for her answer to the Monty Hall problem alone. Readers said that the odds of getting the prize was 50% because there are 2 doors. Even with mathematical proof, readers remained stubborn. For example, Paul Erdős, a Hungarian mathamatician had even argued against Marilyn vos Savant. He had only caned his ind after he was shown a computer simulation. But, without Marilyn, many people would not have heard about the Monty Hall problem. She made this the problem known and after that event, it was later called the Monty Hall

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