system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When large groups of people sing (e.g. stadium fans chanting), they always sound the same. Why is this "mean" voice identical regardless of the group size, race, gender...?
gpt
Well, 100 women would sound different from 100 men and 100 of one race might well sound different from 100 of another...

That aside, if you pick a population type (stadium goers) and pick 100 of them, the average pitch of their voices will approximate the 100 of another random sample. You can't really tell if 60% have a relative deep voice on one side versus 52% on the other.