standard error of the mean 就是你通过样本均值（sample mean）估计总体均值（population mean）的时候，...
但标准误总结的是统计量因为随机抽样而产生的变动状况，下面是来自wiki的解释 Thestandard error(SE)of ...
The standard error of the mean (SEM) is a measure of how far your sample mean is likely to be from the true population mean. 标准误差的平均值(扫描电镜),是衡量有多远你的尿样的意思是可能会被从真实人口的意思。 zhidao.baidu.com 2. standard deviation, variance, standard error of the mean ...
The result is a sample variance of 82.5/9 = 9.17 and a population variance of 8.25. Note that the standard deviation is the square root of the variance, so the standard deviation is about 3.03 for a sample data set. The standard deviation for a population data set would be 2.87. The...
样本的标准差和方差 Variance and standard deviation of a sample [Khan Academy]共计6条视频,包括:Sample variance _ Descriptive statistics _ Probability and Statistics _ Khan Aca、Sample standard deviation and bias _ Probability and Statistics _ Khan Acade
standard error Also found in:Thesaurus,Medical,Legal,Financial,Acronyms,Encyclopedia,Wikipedia. Related to standard error:variance standard error n. A generalized notion of standard deviation, used to characterize the dispersion of a statistic (such as the sample mean) calculated from randomly sampled ...
Standard error estimates the likely accuracy of a number based on the sample size. Standard error of the mean, or SEM, indicates the size of the likely discrepancy compared to that of the larger population. Calculating SD and SEM standard deviationσ=∑i=1n(xi−xˉ)2n−1variance=σ2...
题目 The standard error of the mean is:? the standard deviation of the sampling distribution of sample means.the variance squared.always normally distributed.sometimes less than 0. 相关知识点: 试题来源: 解析 the standard deviation of the sampling distribution of sample means. 反馈 收藏 ...
The standard error is a measure of the standard deviation of some sample distribution in statistics. Learn the formulas for mean and estimation with the example here at BYJU'S.
Variance and standard error estimators for the sampling distribution of the sample meanKen Aho