我們來慢慢一步一步推導計算的公式,
我先請問大家,
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.
在這樣的遊戲規則下,得到汽車的機率是多少?