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Don Schlesinger: Re: Monty Hall revisited
> Masochistic though it may be, I rewatched 21
> recently. It made me think of the following variations
> on the classic Monty Hall problem: 1) Instead of
> three doors, suppose there are n doors. The host
> opens a door he knows to have goats. What is the
> probability that switching to one of the unopened
> doors will result in winning the car?
(n-1)/n(n-2)
2) Same as
> above, but now the host opens a random door, not
> knowing whether it will reveal a goat or the car. If
> the host does not reveal the car, what is the
> probability that switching to one of the unopened
> doors will result in winning the car?
1/(n-1).
>Is it always wise to switch in this case?
No. Switching doesn't help.
Don
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