样本平均值 sample mean ; sample mean value
样本平均值与方差 sample mean and variance
样本平均值的标准误 standard error of sample mean
样本平均值解释 [数] interpretation of sample means
样本平均值的抽样分布 Sampling distribution of sample mean
正态分布数据认为，样本中约68%的数值分布在距离平均值为1的标准偏差之内。
Normally distributed data assumes that about 68% of the values in the sample are within 1 standard deviation of the mean.
人口均值经常写成“x-条形柱”，如果你有一个样本有n个观测者，是从 i=1到n和的xi/n，这是平均值。
The population mean is often written "x-bar." If you have a sample with n observations, it's the summation i = 1 to n of xi/n--that's the average.
方法采用贝塞尔统计方法处理样本数据，用Z比分数衡量一个实验室的检测结果与平均值的偏离程度。
Methods Besaier statistical method was chosen to process the data of the samples, Z-Score was chosen to evaluate the results and experimental deviation.
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