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Guest 6801328
Guest
Humans are the default race. The Standard array is the default stat array. A standard array with human +1s gives you one +3, which if you're paying attention to making a character, you will put in your main stat. +3 is therefore the expected value.
I have to admit I was wondering where you came up with the "expected value" thing. I mean, 99% of the characters I see (made by people intending to play them) have had at least one 16. But, still, "expected value"?
But, yeah, you're right. They didn't call it "Standard Array" for nothing.