Appendixes | Graphics | Box Plot

Box Plot
A box plot (also known as a box-and-whisker plot) provides information about the mean , variability, outliers, and symmetry of the distributions of your data.
Note the following aspects of box plots:
The plot consists of a box that extends from the 25th quantile (also known as the first (Q1) quartile) to the 75th quantile (also known as the third (Q3) quartile).
1st quartile - 1.5*(interquartile range)
3rd quartile + 1.5*(interquartile range)