Please help me understand how to resolve this.

Calculate point estimate of population variance. Write fully your reasoning. Unbiased estimator O is the estimator of 0 for which E(0) = 0 for every value of 0. Thus 0 is unbiased if its sampling distribution is always "centered" at the true value of the parameter. For example, if 0 = 100 then 0 is centered at 100. 62 = $2 = E (X; - X) 2 Prove that n - 1 is unbiased estimator of o2. Where X1, X2, . . .>, is random sample from a distribution with mean u and o2