And in order to provide an unbiased estimate, you do something very similar to here.
为了提供无偏估计,您需要执行与此处非常相似的操作。
单词 | Unbiased estimate |
释义 |
Unbiased estimate
原声例句
可汗学院:统计学(视频版) And in order to provide an unbiased estimate, you do something very similar to here. 为了提供无偏估计,您需要执行与此处非常相似的操作。 可汗学院:统计学(视频版) And there's a formula-- and this is actually proven more rigorously than I'll do it-- that is considered to be a better-- or, they'll call it, unbiased-- estimate of the population variance, or the unbiased sample variance. 有一个公式——这实际上被证明比我做的更严格——被认为是更好的——或者,他们称之为无偏——人口方差估计, 或无偏样本方差。
中文百科
偏差 Bias of an estimator(重定向自Unbiased estimate)
在统计学中,偏差可以用于两个不同的概念,即有偏采样与有偏估计。一个有偏采样是对总样本集非平等采样,而一个有偏估计则是指高估或低估要估计的量。 偏差不一定有害。尽管一个有偏采样会难以分析或引起不准确甚至错误的推断,但是有偏估计在某些情况下也有一些好的特性,例如较小的方差。
英语百科
Bias of an estimator 偏差(重定向自Unbiased estimate)
![]() In statistics, the bias (or bias function) of an estimator is the difference between this estimator's expected value and the true value of the parameter being estimated. An estimator or decision rule with zero bias is called unbiased. Otherwise the estimator is said to be biased. In statistics, "bias" is an objective statement about a function, and while not a desired property, it is not pejorative, unlike the ordinary English use of the term "bias". |
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