27. September 2016

Glossary

Box plot

A so-called box plot is a chart used to visualise how various characteristics are distributed. The box plots used in the survey represent the distribution (position and measure of dispersion) along a scale. The so-called whiskers extending from the boxes represent the minimum and maximum figures, meaning the outliers. The box itself marks the area in which half of all data are located. The shaded band inside the box represents the median that bisects the distribution. One quarter of the data is above the median (shaded in orange) and one quarter below (shaded in blue). Since these areas each represent 25% of the figures, they are referred to as quartiles. The left margin of the box marks the 25% quartile, whereas the right margin of the box marks the 75% quartile.