In descriptive statistics, a box plot (or boxplot) displays the main properties of a dataset through its quartiles. The box spans from the first quartile to the third quartile, with a horizontal line ...

The chapter dealing with graphical statistics in advertising is capital, a large number of illustrations of varying character being shown, ...

After chapters on the description of frequency distribution by graphical methods, ... The present volume confines its attention almost exclusively to the descriptive theory of statistics.