A quantity which does not exhibit estimator bias. An estimator 
is an unbiased estimator of 
if
 |
Unbiased Estimator
See also
Biased Estimator, Estimator, Estimator Bias, k-StatisticExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Unbiased Estimator." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/UnbiasedEstimator.html