Math 108 Topics in Mathematics | Laura Barnes |
5.6 The Five-Number Summary and Boxplots - Video

5.6 The Five-Number Summary and Boxplots - Video

Key Ideas

The five-number summary consists of the median (M), quartiles (Q1 and Q3), and extremes (high and low pieces of data).

A boxplot is a graphical (visual) representation of the five-number summary. A central box spans
quartiles Q_{1} and Q_{3}. A line in the middle of the central box marks the median, M. Two lines extend from the box to represent the extreme values.