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Results tagged with variance
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user 159428
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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How to calculate the standard error of the variance of a data set
Given a data set of N points with sample mean $\overline{x} \pm \Delta\overline{x}$ (here $\Delta\overline{x}$ is the standard error of the mean given by $s/\sqrt{N}$) and sample variance $s^2$, I am …
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