- #1
bob j
- 22
- 0
I have a question about two puzzles that seem similar to me, but I have different answers to them.
One is the following:
You have a hat in which there are three pancakes: One is golden on both sides, one is brown on both sides, and one is golden on one side and brown on the other. You withdraw one pancake, look at one side, and see that it is brown. What is the probability that the other side is brown?
The answer is 2/3 and uses the fact that you had twice as much of probability of choosing the pancake with double brown.
The other problem is this:
Ms. X has two children. You see her walking with one of her children and that child is a boy. What is the probability that both children are boys?
I found this on a book and the answer was 1/2.
Are these different problems? They look the same to me
Thanks
One is the following:
You have a hat in which there are three pancakes: One is golden on both sides, one is brown on both sides, and one is golden on one side and brown on the other. You withdraw one pancake, look at one side, and see that it is brown. What is the probability that the other side is brown?
The answer is 2/3 and uses the fact that you had twice as much of probability of choosing the pancake with double brown.
The other problem is this:
Ms. X has two children. You see her walking with one of her children and that child is a boy. What is the probability that both children are boys?
I found this on a book and the answer was 1/2.
Are these different problems? They look the same to me
Thanks