INBIASED ESTIMATE OF GENERAL . VARIANCE sigma ^2 IS ct one: S_(bar (x))=(s)/(sqrt (n)) D(X)=(1)/(N)sum _(i=1)^N(x_(i)-mu )^2 D(X)=(1)/(N)sum _(i=1)^N(x_(i)-mu )^2n_(i) s^2=(n)/(n-1)sigma _(6)^2

The correct answer is: This formula represents the general variance, denoted as , which is the average of the squared deviations of each data point from the mean .