ABSTRACT
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 #1, and the host, who
knows what’s behind the doors, opens another door, say #3, which has a goat. He
says to you, “Do you want to pick door #2?” Is it to your advantage to switch your
choice of doors?
