What is a five number summary?

1 Answer
Jul 29, 2018

A five-number summary is the 5 values from the data displayed on a boxplot/box-and-whisker plot.


The five-number summary consists of:

  • Minumum: lowest value/observation
  • Lower quartile or Q1: "median" of the lower half of data; lies at 25% of data
  • Median: middle value/observation
  • Higher quartile or Q3: "median" of the upper half of data; lies at 75% of data
  • Maximum: highest value/observation

Here's an example:

Hope this helps!