Standard Deviation

nounverified·updated May 18, 2026

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The most widely used measure of dispersion of a frequency distribution introduced by K. Pearson (1893). It is equal to the positive square root of the variance. The standard deviation should not be confused with the root mean square deviation.

MWE

Classifications

per-axis with provenance

Entity Type

Metric92%llm-generatedllm:claude-haiku-4-5

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Sensitivity

unclassified

Information Class

unclassified

Variants

3 surface forms

plural: Standard Deviations
possessive: Standard Deviation's
pluralpossessive: Standard Deviations'

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