1) Navigate to https://cran.case.edu and click the download link for your operating system
2) Select R-4.1.2.pkg to download
3) Navigate to https://www.rstudio.com/products/rstudio/download and select the free version of RStudio Desktop
4) Go to https://swcarpentry.github.io/r-novice-gapminder/01-rstudio-intro to practice using RStudio and R