- sample mean estimator
- 样本均值估计器
English-Chinese computer dictionary (英汉计算机词汇大词典). 2013.
sample mean estimator
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Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample … Wikipedia
Estimator — In statistics, an estimator is a function of the observable sample data that is used to estimate an unknown population parameter (which is called the estimand ); an estimate is the result from the actual application of the function to a… … Wikipedia
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estimator — A prescription for obtaining an estimate from a random sample of data. An e. is a procedure, not a result, and therefore is a random variable and has a variance. For instance an e. of the mean weight in adult … Medical dictionary
Bias of an estimator — In statistics, the difference between an estimator s expected value and the true value of the parameter being estimated is called the bias. An estimator or decision rule having nonzero bias is said to be biased.Although the term bias sounds… … Wikipedia
