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Results tagged with variance
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user 113383
The expected squared deviation of a random variable from its mean; or, the average squared deviation of data about their mean.
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Understanding "variance" intuitively
Variance is the size of the average square contributing to that larger square. 49 + 1 + 49 + 1 = 100, 100/4 = 25. So 25 would be the variance. … Obviously this analogy does not cover the full nuance of the concept of variance. …
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