standard deviation of a random variable 1
noundomain: thinking
EnWordnet [ver.5.0]
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EnglishDefinition
(probability and statistics) the average distance of a random variable from the mean value, equal to the square root of its variance.
Examples
- 1.The variance and standard deviation of a random variable are the sample variance and sample standard deviation we expect to get if we have a large number of X-scores.
