In order to talk about statistics we must first learn some of the important words and vocabulary involved in analyzing statistical data. Of course, definitions and vocabulary are meant to be used, so in this Chapter we will immediately begin analyzing data: we will look at different ways to measure the center of a data set, as well as measure the spread or variation of a data set. You will also learn some other ways of summarizing data such as using percentiles.
This Chapter begins with an introduction to definitions of statistical terms. The main concepts are the discovery of the different measures of center and spread. Additional ways of summarizing data such as percentiles are covered as well.