The standard deviation
Example: Standard deviation measures spread of data around mean
Definition
"The standard deviation" is a statistical measure that quantifies the amount of variation or dispersion in a set of data values, indicating how much the data points typically differ from the mean value. It helps understand the spread of data around the average.
Etymology
The term "the standard deviation" originates from the field of statistics, where 'standard' implies a basis of comparison and 'deviation' refers to the difference from a central value. It was formalized in the late 19th century to describe variability in data, helping researchers assess consistency and reliability.
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"The standard deviation" appears in the Vocaplus list "English - Research - (A1-C2) - set 1", containing 108 commonly used words.
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