Estimator Variance

From GM-RKB
(Redirected from estimator variance)
Jump to navigation Jump to search

See: Point Estimate, Sample Variance Value, Population Variance, Estimator, Estimator Bias.



References

2009

  • http://en.wikipedia.org/wiki/Estimator#Efficiency
    • Two naturally desirable properties of estimators are for them to be unbiased and have minimal mean squared error (MSE). These cannot in general both be satisfied simultaneously: a biased estimator may have lower mean squared error (MSE) than any unbiased estimator: despite having bias, the estimator variance may be sufficiently smaller than that of any unbiased estimator, and it may be preferable to use, despite the bias; see estimator bias.