The variance of a group of data S2 = [(x1-2) 2 + (x2-2) 2 +...] +(x10-2) 2], then the average of this set of data is_______ .

The variance of a group of data S2 = [(x1-2) 2 + (x2-2) 2 +...] +(x10-2) 2], then the average of this set of data is_______ .

The average is two
The definition of variance is the sum of the difference between each number and the mean