It seems to me if you correct/don't correct for people who didn't follow the directions, what you've actually come up with is a graph of how well people follow

It seems to me if you correct/don't correct for people who didn't follow the directions, what you've actually come up with is a graph of how well people follow directions, which peaks at age 30. I don't feel bad for being 57% random at age 58. 8) I guess my ability to follow directions is about to nosedive.