薛真 · 2020年03月06日
问题如下：
What is the sample analog to the expectation operator, and how is it used?
选项：
解释：
The sample analog replaces the expectation operator with the average so that E[(g(X))] is approximated by . The sample analog is a universally used approach to estimating moments of any order.
问题的这句话什么意思
NO.PZ2020010304000024 问题如下 Whis the sample analog to the expectation operator, anhow is it use The sample analog replaces the expectation operator with the average so thE[(g(X))] is approximaten−1∑g(xi)n^{-1}\sum g(x_i)n−1∑g(xi). The sample analog is a universally useapproato estimating moments of any orr. 老师您好， 这题出在假设检验章节。 回翻讲义貌似没有找到， 请问可以发下知识点具体的位置吗。 题干中analog这个词什么意思
请问这题出的地儿对吗？感觉课上提到过哎
