chi-square

noun

A test statistic used in the chi-square test.

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Meanings

nounchi-square (plural chi-squares)

plural chi-squares

  1. attributiveoftenmathematicsA test statistic used in the chi-square test.
  2. A journalism educator or researcher focusing on statistical methods and quantitative measurement.

Origin

Originated from the shorthand notation used by English polymath Karl Pearson (1857–1936), likely popularized by his 1900 paper on the chi-square test.

Full word history & related roots →

Translations

Chinese Mandarin 卡方
  • 卡方 (kǎfāng)test statistic
Finnish khii toiseen
  • khii toiseentest statistic
Polish chi kwadrat
  • chi kwadrattest statistic
Portuguese qui-quadrado
  • qui-quadradotest statistic
Russian хи-квадрат
  • хи-квадрат (xi-kvadrat)test statistic
Tamil கை-சதுரம்
  • கை-சதுரம் (kai-caturam)test statistic
Cite this entry
APA

chi-square. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/chi-square

MLA

“chi-square.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/chi-square. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “chi-square,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/chi-square.

Source: chi-square on Wiktionary, CC BY-SA 4.0.