Given a dataset X={x1,x2,…,xn}X = \{x_1, x_2, \dots, x_n\}X={x1,x2,…,xn} with mean xˉ\bar{x}xˉ, what is the value of ∑i=1n(xi−xˉ)\sum_{i=1}^n (x_i - \bar{x})∑i=1n(xi−xˉ)?
000
nxˉn\bar{x}nxˉ
xˉ\bar{x}xˉ
∑xi2−nxˉ2\sum x_i^2 - n\bar{x}^2∑xi2−nxˉ2