Great comments so far, Kara and Ian. I’ll see if I can find a data set that we used in grad school. If I recall correctly, the average (mean) was the same for the three sub-populations, as were some of the other metrics. But the shape of the data in each cohort was quite distinct, and my recollection is that one of these types of graphs really helped you to see why and where the differences occurred. I’ll let you know what I find.