2009-03-12, 07:15 PM
Alloy Wrote:I understand the logic there, but once a variable is no longer random, it shouldn't be considered into the ecuation. If you flip a coin 5 times, and you know it was all the same side, you can take them out. It's the same possibility for either side on the next.
You don't know which one is, but you know it's one, and that the other is independant to the other.
The thing is, it still is random~ We don't know whether the first or the second child is the boy.
"A woman has two kids. One is a boy. What are the odds the other is a boy?"
Let's rephrase the question into this:
"A woman has two kids. It is not the case that they are both girls. What are the odds both kids are boys?"
Will your answer be different then?