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re: Marilyn vos Savant and the history of the Montel Hall question
Posted on 2/23/15 at 4:41 pm to buckeye_vol
Posted on 2/23/15 at 4:41 pm to buckeye_vol
quote:
There is never a 50/50 chance though.
This is where we begin to swim in circles and folks seem to forget what the article explains about the "initial" odds and the importance of their focus on the words "initial" and the significance of some viewing the test as a 2 step process versus a view of the whole game and the requirements placed on the Host.
The Host is forced to drop a goat. I can't imagine that a ton of people here would try to argue that you have a 2/3's chance of picking the car if you are only picking between 2 doors with one containing a goat.
The only way this puzzle works is because of the way it begins, with 3 doors and 2 goats. That's the beauty of it. In reality, you can't ignore the beginning regardless of what follows.
Posted on 2/23/15 at 4:48 pm to Monk
quote:Sure, but those that incorrectly assume the odds change will be wrong.
This is where we begin to swim in circles and folks seem to forget what the article explains about the "initial" odds and the importance of their focus on the words "initial" and the significance of some viewing the test as a 2 step process versus a view of the whole game and the requirements placed on the Host
In fact, what may be most fascinating by this paradox in this scenario is it is the exact opposite reasoning that people apply to "runs" at the casino. In other words, they choose black because there has been 5 reds in a row because the assumed dependency of independent events. In the Monty Hall Problem, the assume step two is independent of step 1. So they assume independence of dependent events.
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