quartile
verbEtymology From Middle French quartil, from Medieval Latin quartilus. By surface analysis, quart + -ile.
1
To divide into quartiles.
quartile
noun/ˈkwɔː(ɹ)taɪl/
Etymology From Middle French quartil, from Medieval Latin quartilus. By surface analysis, quart + -ile.
1
Mathematics, Sciences, Statistics Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population.
2
Mathematics, Sciences, Statistics Any one of the four groups so divided.
- This school is ranked in the first quartile.
- The Department for Transport's National Travel Survey shows that workers in the lowest income quartile are twice as likely to use public transport.2021 July 28, Paul Clifton, “Network News: Confusion and dissent over face mask requirements: Reaction to the Guidance: British Safety Council”, in RAIL, number 936, page 6:
2 more examples
- In June 2021, the top-income quartile of Chase customers had a median cash buffer of 43 days, while the lowest-income quartile had a median cash buffer of 22 days.2023 July 18, Elisabeth Buchwald, “Americans aren’t rebuilding their savings fast enough”, in CNN Business, archived from the original on 17 Aug 2023:
- Total activity levels in the lowest quartile were equivalent to walking for 49 minutes at roughly 3 miles (4.8 kilometers) per hour daily. Total activity levels in the second-, third- and fourth-highest quartiles were equivalent to 78, 105 and 160 minutes, respectively.2024 November 15, Kristen Rogers, “Want to live an extra 5 to 10 years? Adopt this habit, study suggests”, in CNN, archived from the original on 11 Jul 2025:
- Derived terms
- interquartile, intraquartile, lower quartile, semiquartile, upper quartile, interquartile range
- Hypernyms
- quantile