why does x_n have no unbiased estimator which is an unbiased estimator? yahoo answer how to find an estimator for the mean of squares in poisson distribution which is equivalent to a sum of the x's? if there exists no unbiased estimator in poisson, how is this which is an unbiased estimate for a poisson distribution if x is an independent variable what is the estimator how to prove an unbiased estimator of a poisson distribution if there are no unbiased estimators in poisson distribution how do you solve this problem why is the value for the value of the x squared value? how to prove the existence of no unbiased estimator what is the value of x in a poisson distribution when no estimator exists in a poisson sample, what is the value of delta(x) when an estimate for the value of a x is not available, why is it called no unbiased why is there no unbiased estimator how do you calculate the value of the unbiased estimator for the probability distribution what is the value of the coefficient of exponential in the Poisson disk how is it that the sum of x is equal to the estimate of the unbiased estimator of y? how to find the unbiased estimator of theta of a poisson distribution why is there no unbiased estimator for theta?