I simply don't believe that the average woman can't do 1 pull up

There's a statistic that's been going viral that on average women can't do 1 pull up and I don't believe it. They must of included the 50+ in those numbers for the average to be 0. Then in the same study it says the average man can do 8. Now there's a strength difference sure but it's not that extreme and there's no way, as a gym goer can the average man do 8 unassisted. I barely see full reps from majority of men let alone the average Joe hitting 8.