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Old 07 February 2014, 03:43 PM
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UEL UEL is offline
Join Date: 01 August 2004
Location: Fredericton, Canada
Posts: 9,392

This was in my course recently. Many do not see it as true:

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?
And, of course the true answer is to switch.

I realised it right away, but even now on the course (problem was introduced 3.5 weeks ago) people argue that it is not true.
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