quartile

noun

quar·​tile ˈkwȯr-ˌtī(-ə)l How to pronounce quartile (audio)
-tᵊl
: any of the three values that divide the items of a frequency distribution into four classes with each containing one fourth of the total population
also : any one of the four classes

Did you know?

A quartile is a quarter of a specific group that has been tested or evaluated in specific ways. The first quartile is the one that scores highest and the fourth quartile scores lowest. For achievement and proficiency tests, the first quartile is the place to be; for blood pressure or cholesterol, the third quartile is healthier.

Examples of quartile in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In one school, 99th Street Elementary, test scores jumped from bottom quartiles to the top in 2010, according to Tingirides. Paul Solotaroff, Rolling Stone, 11 May 2025 However, its performance so far this year lands it in the third quartile. Michelle Fox, CNBC, 21 Mar. 2025 Employers in the top quartile for employee engagement were 78% less likely to experience absenteeism than employers in the bottom quartile. Ryan Hogg, Fortune, 12 June 2024 The wealthiest 25% of people in northern and western Europe had mortality rates that were about 35% lower than participants in the wealthiest quartile in the U.S. Irene N. Papanicolas, The Conversation, 9 Apr. 2025 See All Example Sentences for quartile

Word History

Etymology

International Scientific Vocabulary, from Latin quartus

First Known Use

1879, in the meaning defined above

Time Traveler
The first known use of quartile was in 1879

Browse Nearby Words

Cite this Entry

“Quartile.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quartile. Accessed 2 Jun. 2025.

More from Merriam-Webster on quartile

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!