This question already has an answer here:
- The Monty Hall problem 11 answers
I am a bit confused. I thought after Monty opens the door with the goat, conditional probabilities kick in and our sample space shrinks down to 2 doors instead of 3, and since they were all equally likely, the two doors now have probabilities of 1/2. But apparently, we are not supposed to use conditional probability here?
Thanks in advance