Introduction to linear regression

simulated_scatter $\to$ Fake data used for the first three plots. The perfect linear plot uses group 4 data, where group variable in the data set (Figure 8.1). The group of 3 imperfect linear plots use groups 1-3 (Figure 8.2). The sinusoidal curve uses group 5 data (Figure 8.3). The group of 3 scatterplots with residual plots use groups 6-8 (Figure 8.8). The correlation plots uses groups 9-19 data (Figures 8.9 and 8.10).

possum $\to$ This data set is described in Data Appendix B.4.

elmhurst $\to$ These data were sampled from a table of data for all freshman from the 2011 class at Elmhurst College that accompanied an article titled What Students Really Pay to Go to College published online by The Chronicle of Higher Education: chronicle.com/article/What-Students-Really-Pay-to-Go/131435.

simulated_scatter $\to$ The plots for things that can go wrong uses groups 20-23 (Figure 8.12).

mariokart $\to$ Auction data from Ebay (ebay.com) for the game Mario Kart for the Nintendo Wii. This data set was collected in early October, 2009.

simulated_scatter $\to$ The plots for types of outliers uses groups 24-29 (Figure 8.18).

midterms_house $\to$ Data was retrieved from Wikipedia.