I want to make sure that my understanding of the difference between estimator and expectation is rig
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I want to make sure that my understanding of the difference between estimator and expectation is right.
Expectation is the true mean as we draw a great number of random sample to figure it out.
While,the estimator is a mean as well,but it is not a true mean as the not sufficient number of random sample I have framed.
这英文是我自己的,我懒得换成中文。
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举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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