Chapter 1 M1: Data and Descriptives

We start at the bottom: with data, or information about the world we’re interested in. We’ll use these observations to describe the world, and to make informed guesses about things we can’t observe directly. But in order to do that, we have to have a shared language for talking about data…and we have to think a bit about where we’re getting the data in the first place. We’ll also review some ways of describing data that you may have seen in your previous stats work.