Since the descriptive statistics are the easier of the two topics, I’ll start with those, but nevertheless I’ll show you a histogram of the afl.margins data, since it should help you get a sense of wh...Since the descriptive statistics are the easier of the two topics, I’ll start with those, but nevertheless I’ll show you a histogram of the afl.margins data, since it should help you get a sense of what the data we’re trying to describe actually look like.
Any time that you get a new set of data, one of the first tasks that you have to do is summarize the data in a compact, easily understood fashion. It is this topic that we’ll consider in this chapter,...Any time that you get a new set of data, one of the first tasks that you have to do is summarize the data in a compact, easily understood fashion. It is this topic that we’ll consider in this chapter, but before going into any details, let’s take a moment to get a sense of why we need descriptive statistics. Even if we looked at the list of all 2,429 data points, there isn't any way to just look at the data and make any real sense of it.
