Those baseball heights are too tall. They must have measured them in cleats. The average American 20-year old is 5-9 and weighs 195. Hokay.
I was a pretty decent athlete back in the day, and played all the major sports, plus a couple others. IMO, hitting a baseball is easily the most difficult thing to do in sports.....Assuming you learn to skate
Well, I'm 5-4 in cleats and weigh 290, and I'm an average U.S. male, as average as a former pro wrestler can be, so I believe the chart.