Chapter 10: Regression and Correlation
When comparing two different variables, two questions come to mind: “Is there a relationship between two variables?” and “How strong is that relationship?” These questions can be answered using regression and correlation. Regression answers whether there is a relationship (again this book will explore linear only) and correlation answers how strong the linear relationship is. To introduce both of these concepts, it is easier to look at a set of data.
Adapted from Statistics with Technology, 2nd Edition, by Kathryn Kozak (Coconino Community College), © Kathryn Kozak, licensed under CC BY-SA 4.0. Changes were made. License: CC-BY-SA-4.0.