Originally posted by Kidicious
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But when I see a large data set (the human population) conforming to expected values (~1:1 sex ratio) I assume it's because of the Law of Large Numbers. You're much more likely to see a skewing of the sex ratio in small data sets. For example, my parents have three children. You would expect there to be 1.5 male children and 1.5 female children, but instead there are 3.0 male children and 0.0 female children, because the Law of Large Numbers does not apply with such a small data set.
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