[mjw]

The coloured dots are cute and all, but if the goal is to make visually apparent the relationship between salary and union membership, some more traditional visualisations might have made this clearer. For example boxplots broken down by union.

[glaugh]

Here's a different perspective on the data. Threw the data into Statwing, related Salary to Union Membership:

https://www.statwing.com/open/datasets/6019645769abb7de64d3e...

You can play around in there a bit, too. I thought just running descriptives on everything was pretty interesting.

Disclosure: I work at Statwing. Thanks to OP for making original data easy to get to.

[taeric]

Yeah... I'm honestly not sure what I'm supposed to be seeing with this visualization. :(

[tpurves]

Yes it's indeed visual. Is the visualization insightful? no.