Unbiased Estimator

An unbiased estimator is a quantity which does not exhibit estimator bias. An estimator is an unbiased estimator of the parameter if

for every admissible , where the expectation value is taken under the corresponding statistical distribution.

See also

Biased Estimator, Estimator, Estimator Bias, k-Statistic, Minimum Variance Unbiased Estimator

Explore with Wolfram|Alpha

More things to try:

Cite this as:

Weisstein, Eric W. "Unbiased Estimator." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/UnbiasedEstimator.html

Subject classifications