2.1 Descriptive Statistics

2.1.3 Exploratory data analysis (EDA)

https://en.wikipedia.org/wiki/Scagnostics

2.1.3.1 Steam-and-leaf plot

2.1.3.2 Histogram and Bar chart

2.1.3.3 Pareto chart

2.1.3.4 Density plot

2.1.3.5 Box-plot and Violin plot