stylistic:style_transfer, linguistic:translation
Sum of differences from the mean

Another useful formula is as follows: ∑ i = 1 n (x i − μ) 2 = ∑ i = 1 n (x i − x ¯) 2 + n (x ¯ − μ) 2 {\displaystyle \sum _{i=1}^{n}(x_{i}-\mu)^{2}=\sum _{i=1}^{n}(x_{i}-{\bar {x}})^{2}+n({\bar {x}}-\mu)^{2}} where x ¯ = 1 n ∑ i = 1 n x i. {\textstyle {\bar {x}}={\frac {1}{n}}\sum _{i=1}^{n}x_{i}.}