Summary

The author speaking again: how was your EDA? You found where the drop came from, didn't you? This is great, and we are going to see what the boss thinks about it in a few pages, but let me just summarize here which topic you have been working on with your colleague and what you have learned.

First of all, you were introduced to the concept of EDA and how it can be included within the data analysis process.

You then learned about summary EDA and actually performed it on real data, focusing on quartiles and median, mean, variance, standard deviation, and skewness. For all of them, you first got a sense of what these summary statistics are about and how they work. Finally, you learned what the relevant functions are and how you have to employ them in order to compute each and every one of these statistics.

As a last step within the summary EDA field, you discovered the Anscombe quartet, which is composed of four different datasets sharing a lot of identical summary statistics, even if...