B The Monty Hall paradox/conundrum

  • Thread starter Thread starter cmb
  • Start date Start date
  • Tags Tags
    Monty hall
Click For Summary
The Monty Hall problem presents a scenario where a contestant chooses one of three doors, behind one of which is a car and behind the others, goats. The intuitive belief that switching doors offers a 50:50 chance is challenged by the argument that the probability of winning actually increases to 2/3 if the contestant switches after one goat door is revealed. The discussion highlights a misunderstanding of probability, particularly in how prior knowledge affects outcomes, suggesting that the contestant's original choice does not retain its 1/3 probability after a goat is revealed. Critics argue that the host's action of revealing a goat does not change the initial probabilities but redistributes them among the remaining doors. Ultimately, the consensus supports the 2/3 probability for switching, emphasizing the importance of understanding conditional probability in this scenario.
  • #211
WWGD said:
I agree. What I mean is in the more general sense, if you're not sure you picked the goat, there is a 2/3 probability you did.
Yes. So if I didn't initially pick the car, then switching wins the car.
 
Physics news on Phys.org
  • #212
sysprog said:
Yes. So if I didn't initially pick the car, then switching wins the car.
Yes, I think we're both saying the same in different ways.
 
  • #213
Thread closed for moderation.
 

Similar threads

  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 51 ·
2
Replies
51
Views
966
  • · Replies 12 ·
Replies
12
Views
3K
Replies
21
Views
15K
  • · Replies 89 ·
3
Replies
89
Views
9K
  • · Replies 19 ·
Replies
19
Views
3K
Replies
9
Views
3K