Exercise solutions for 'An Introduction to Statistical Learning with Applications in R' (7th Edition).
Online course available from: http://statlearning.class.stanford.edu/.
Link to solutions: https://onmee.github.io/ISLR-Solutions/
RStudio is a great IDE for R, and would be my recommendation for this course.
There will certainly be some errors in my answers, so use your own critical judgment for confirmation.