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>Someone can be an only son regardless of the number of sisters he has Yes, that's what my point was - "he could have had any number of sisters" - if you have
by yesenadam 8y ago
>Someone can be an only son regardless of the number of sisters he has
Yes, that's what my point was - "he could have had any number of sisters" - if you have 12 sisters, it's extremely unlikely you are an only son. The more sisters, the more unlikely being an only son is.
- eruci 8y agoYep, but the whole trick is finding a model that estimates the percentage of the male population that are 'only sons' at 0,1, and 2nd generation level.