Phrase guide

standard deviation

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A measure of how spread out data values are around the mean, defined as the square root of the variance. Represented with the Greek letter σ (sigma).

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, statistics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the square root of the variance

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: variance

History

Etymology

Coined by English mathematician, biometrician, and eugenicist Karl Pearson in 1894 in his paper "On the dissection of asymmetrical frequency curves".

Across languages

Translations

51 source translations are retained for this English entry.

  • Afrikaans: standaardafwyking — statistical measure
  • Albanian: devijimi standard — statistical measure
  • Arabic: انحراف معياري — statistical measure
  • Azerbaijani: orta kvadratik meyl — statistical measure
  • Belarusian: стандартнае адхіленьне (standartnaje adxiljenʹnje) — statistical measure
  • Bulgarian: стандартно отклонение (standartno otklonenie) — statistical measure
  • Catalan: desviació estàndard — statistical measure
  • Catalan: desviació tipus — statistical measure
  • Chinese Cantonese: 標準差 /标准差 (biu1 zeon2 caa1) — statistical measure
  • Chinese Mandarin: 標準差 /标准差 (biāozhǔn chā) — statistical measure
  • Czech: směrodatná odchylka — statistical measure
  • Danish: standardafvigelse — statistical measure
  • Dutch: standaardafwijking — statistical measure
  • Dutch: standaarddeviatie — statistical measure
  • Esperanto: norma diferenco — statistical measure
  • Estonian: standardhälve — statistical measure
  • Finnish: keskihajonta — statistical measure
  • French: écart type — statistical measure
  • Galician: desviación típica — statistical measure
  • German: Standardabweichung — statistical measure
  • Greek: τυπική απόκλιση (typikí apóklisi) — statistical measure
  • Hebrew: סטיית תקן — statistical measure
  • Icelandic: staðalfrávik — statistical measure
  • Indonesian: simpangan baku — statistical measure
  • Italian: scarto quadratico medio — statistical measure
  • Italian: deviazione standard — statistical measure
  • Italian: scarto tipo — statistical measure
  • Japanese: 標準偏差 (hyōjun hensa) — statistical measure
  • Korean: 표준 편차 (pyojun pyeoncha) — statistical measure
  • Central Kurdish: لادانی پێوانەیی (ladanî pêwaneyî) — statistical measure
  • Latvian: standartnovirze — statistical measure
  • Lithuanian: standartinis nuokrypis — statistical measure
  • Macedonian: стандардно отстапување (standardno otstapuvanje) — statistical measure
  • Malay: sisihan piawai — statistical measure
  • Norwegian: standardavvik — statistical measure
  • Persian: انحراف معیار — statistical measure
  • Polish: odchylenie standardowe — statistical measure
  • Portuguese: desvio-padrão — statistical measure
  • Russian: станда́ртное отклоне́ние (standártnoje otklonénije) — statistical measure
  • Slovak: smerodajná odchýlka — statistical measure
  • Slovene: standardna deviacija — statistical measure
  • Spanish: desviación estándar — statistical measure
  • Spanish: desviación típica — statistical measure
  • Swahili: mkengeuko wastani — statistical measure
  • Swedish: standardavvikelse — statistical measure
  • Tagalog: pamantayang liwas — statistical measure
  • Thai: ส่วนเบี่ยงเบนมาตรฐาน (sùan-bìang-ben-mâat-rá-tăan) — statistical measure
  • Ukrainian: станда́ртне відхи́лення (standártne vidxýlennja) — statistical measure
  • Urdu: معیاری انحراف — statistical measure
  • Welsh: gwyriad safonol — statistical measure
  • Zazaki: tadena standardi — statistical measure