On Twitter, Phil Cohen asked how he might make a plot showing overlapping distributions:

Hey, here's a question. Does this work for showing the inequality between two distributions? Also, the data, if you have a better idea: pic.twitter.com/ViXuMfw1Qt

— Philip N Cohen (@familyunequal) May 7, 2018

I think that he was on the right track using transparency, but I am not sure that the color was exactly right. The plot reminded me of what Mike Bostock (my generation's Edward Tufte) did to make a population pyramid.

Phil was also working with another disadvantage: he's using Microsoft Excel. Excel (all Microsoft Office products actually), renders the alpha channel terribly ...