150****43412023-03-26 22:54:56
150****4341对于A：Sampling error refers to the difference between the observed value of a statistic and the quantity it is intended to estimate as a result of using subsets of the population。这句话里， 前面的the observed value of a statistic是指总体统计值，后面的he quantity it is intended to estimate as a result of using subsets of the population是指样本统计值对吗？
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Evian, CFA2023-03-26 23:47:49
Evian, CFAヾ(◍°∇°◍)ﾉﾞ你好同学，
sampling error=样本均值-总体均值
Sampling error refers to the difference between the observed value of a statistic and the quantity it is intended to estimate as a result of using subsets of the population。
the observed value of a statistic：统计量的观测值，可以对应“样本均值”
the quantity it is intended to estimate：想要估计的数，可以对应“总体均值”
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