Chapter 8 Video 9 - Scatterplots with Four Variables in R (with ggplot2)

In this video, we create a scatterplot with four variables in R using the geom_point() function from the ggplot2 package.
This is the 9th video of Chapter 8 for the book Quantitative Social Science Data with R, 2nd Edition (Sage).
April 2023 Update: Data & codebooks are now available for these R tutorials: study.sagepub....