What is the difference between variance and variability?

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ul2ph3ojc · Accepted Answer

Variability, which measures how much the data varies, is defined as "lack of consistency."
Measures of variability include variance, standard deviation, interquartile range, and range.
The average squared deviation of a random variable from its mean is known as variance.
Variance of X is defined as $V a r (X) = E [{(X - μ)}^{2}]$ .

stamptsk · Accepted Answer

The short answer is no, variation variance, as stated by others in the comments section. Spread, dispersion, scatter, and variability are all alternatives for the noun &quot;variation.&quot; It&#039;s just a way of talking about the behavior of the data in a general sense as either having a lot of density over a narrow interval (generally near the mean, but not necessarily if the distribution is skewed) or spread out over a wide range. Variance is a particular measure of variability, but others exist (and several are enumerated in the linked article).

What is the difference between variance and variability?

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