standard deviation
English edit
Etymology edit
Coined by English mathematician Karl Pearson in 1894 in his paper "On the dissection of asymmetrical frequency curves".
Noun edit
standard deviation (plural standard deviations)
- (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 edit
Translations edit
statistical measure
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Further reading edit
- standard deviation on Wikipedia.Wikipedia