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I must admit, I don't understand the distinction. What does age have to do with it? The information seems to be the same in both cases: a man with two kids, at
by Tichy 16y ago
I must admit, I don't understand the distinction. What does age have to do with it? The information seems to be the same in both cases: a man with two kids, at least one of them a girl.
Of course thinking about age is a legit way to calculate the probability of the second kid being a girl. It is just unnecessarily complicated.
- Dn_Ab 16y agoThe distinction is in how the information was presented and there is a difference (let us ignore the ages and assume i met the younger one then seeing as I met one girl my space is {(F,F), (F,M)} vs {(F,F), (F,M), (M,F)} for at least one girl while accounting for age). For the second age does not matter so much as who is older and accounting for all combinations is why I present it that way. The distinction is tricky but problems like these are often covered in the conditional probabilities section of most probability theory texts.