Psychology Wiki

Five-number summary

34,203pages on
this wiki
Add New Page
Talk0 Share

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Statistics: Scientific method · Research methods · Experimental design · Undergraduate statistics courses · Statistical tests · Game theory · Decision theory

In descriptive statistics, the five-number summary of a data set consists of:

  1. the minimum (smallest observation)
  2. the lower quartile or first quartile (which cuts off the lowest 25% of the data)
  3. the median (middle value)
  4. the upper quartile or third quartile (which cuts off the highest 25% of the data)
  5. the maximum (largest observation)

The five-number summary is sometimes represented as in the following table:

1st quartile 3rd quartile
Minimum Maximum

The five-number summary can be represented graphically using a boxplot.

See also: Quartile, Order statistic


This page uses Creative Commons Licensed content from Wikipedia (view authors).

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Also on Fandom

Random Wiki