I took this at a college- horrible concept technique, lack of detail, lack of effort. A student or beginner or anyone is better off the search for free online resources, like Rstudio. R for Dummies is free online has better information, Khan Academy, Chanel 9, Techieeventure, or www.techieventures.in on youtube and host of other options. Do not bother wasting your time or money here.