That is so much hair!
I’m sure most of us were pretty close with this one. Hitting the exact number might be hard. But it is pretty easy to reason out that it’s going to be the vast majority.
The actual percentage of people with black or brown hair is 90. That makes sense, because brown and black hair is the dominant trait in humans. Red and blond hair come from a recessive trait, so are far less likely to appear. You will find the same thing with brown eyes.
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