which linear estimator shows the largest linear unbiased variance is olis biased which linear regression estimator has the lowest variance which is the best linear unbiased estimator what is the difference between linear unbiased and linear nonlinear why is ols unbiased? why not unbiased regression estimator what's the name of an unbiased linear estimator? what's the best linear unbiased estimator which linear estimator is best in linear regression what is the best unbiased linear estimator what's an ols estimator which linear estimator has the best variance? are there unbiased linear estimators? what types of linear estimators are biased what is the best linear unbiased estimator which of the following is an example of a biased nonlinear estimator? what unbiased regression estimator should you use why is ols biased what is ols