This 4-video module focuses on developing models with R. The first three videos replicate material from Chapter 23 of R for Data Science (https://r4ds.had.co.nz/). The 4th video (presented by PhD student Jingwei Liu) develops a regression model for the Car Prices data set used in Homework 5 (from Fall ’22). The R script and data file for the 4th video are available here.