This is a puzzle I picked up from the Movie “21” that I was watching 2 days back. The scene is a class in MIT, where the professor gives this problem to one of the students. Here it goes:
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?
Please send your answers directly to me on e-mail – firstname.lastname@example.org