alt Hacker NewsWe are conditioning out the case where the host picks the door with a car, so there's only two scenarios of equal probability left. Hence 50-50.
We are conditioning out the case where the host picks the door with a car, so there's only two scenarios of equal probability left. Hence 50-50.
Well yes, if you throw out half of the instances where your original choice was wrong, then the chance your original choice was correct will inevitably go up.