standard deviation

English

Etymology

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

Pronunciation

  • Audio (US):(file)

Noun

standard deviation (plural standard deviations)

  1. (statistics) 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).

Synonyms

Translations

Further reading

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.