Urgent, I need the whole equation to be solved?

From the given formulae of sample variances which is biased estimator of a^2 and why?





S^2 = Sum ( x - x )^2 , s^2 = Sum ( x - x )^2


n-------------, ------------------- n - 1





I can't post the exact equation in a statistical manner but Please I need the whole equation to be solved step by step. Its urgent. Thanx.|||(x - x)虏 = (0)虏 Since s虏 = sum (x - x)虏 Then s虏 = (0)虏





- - - - - - s-|||Maybe that second x is really x-mean, sometimes denoted %26lt;x%26gt;.|||just gotta say, this equation is random, i mean ( x - x ) that's 0 so wat's the point of puting that in?|||Your question is not clear.