if the estimator is a variable, do the sampling methods use bootstrapping? how is estimator distribution determined is an estimator an estimator? what is the distribution of an estimator? what is the distribution of the estimator how is a distribution calculated for estimators how is the estimated distribution determined what is the definition of estimator distribution what is the estimator and how is it calculated what's the definition of estimator what is meant by definition of an estimator what is the distribution of the estimator what is the definition of estimator how to construct a distribution of a estimator how to determine distribution of estimator what is the definition of the estimator when is the estimation of an estimator determined? is it recommended to use bootstrapping when the estimated distribution of an estimater is constructed for every sample size? is an estimate distributed how does an estimator work