estimators

例句:

• The concept is useful in assessing the large sample properties of econometric estimators.
  在评价经济计量估算值的大规模抽样特征时,这是一个有用的概念.
  
• It is shown that the proposed mean imputation estimators are asymptoyically normal.
  证明了它们具有渐近正态性,并进行了模拟研究.
  
• The approach yields more precise estimators and more powerful tests.
  这种方法产生更严谨的估算人和更强有力的试验.