4.2.2 Boxplot
Last updated
Last updated
In descriptive statistics, a box plot or boxplot is a method for graphically depicting groups of numerical data through their quartiles.
Box plot describes data distribution with 5 measures. Generally, these five numbers illustrate a lot of information about the distribution of a variable.
Interquartile range (IQR): 25th to 75th percentile
minimum (Q1 - 1.5 * IQR)
first quartile (Q1/ 25th percentile),
median (50th percentile)
third quartile(Q3 / 75th percentile)
maximum. (Q1 + 1.5 * IQR)