You’re probably already familiar with the measures of central tendency: mean, median and mode. ![]() In other words, you want to know what a “typical” observation looks like and how the rest of the data compares. The goal is to get some idea about the center and variance of your data. Descriptive Statisticsĭescriptive statistics help you attain a general overview of the numeric data. I’m going to stick to working with the State data for now, but everything should apply to the other data sets with some slight modifications. By the end of the process you should possess a better grasp of the data you’re working with and the following are just some tools to guide you there. What I’m about to go over is generally how I approach things, but there’s no right way to go about exploratory analysis. The first step of any quantitative analysis involves computing some descriptive (summary) statistics.
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