upper quartile

noun

The median of the upper or highest half of a data set, especially of a sample, population, or probability distribution.

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Meanings

nounupper quartile (plural upper quartiles)

plural upper quartiles

  1. mathematicsThe median of the upper or highest half of a data set, especially of a sample, population, or probability distribution.
Cite this entry
APA

upper quartile. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/upper%20quartile

MLA

“upper quartile.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/upper%20quartile. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “upper quartile,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/upper%20quartile.

Source: upper quartile on Wiktionary, CC BY-SA 4.0.