iris_d发表:巴特莱检验 Bartlett’s test 百分误差 percentage error 白色分析体系 white analytocal system 备择假设 alternative hypothesis 比例抽样 proportional sampling 编码 coding 变异系数 coefficient of variation 标准(偏)差的标准(偏)差 standard deviation of standard deviation 标准回归系数standardized regression coefficient 标准(偏)差 standard deviation 标准正态分布 standard normal distribution 并合标准(偏)差 pooled standard deviation 不等精度测量 unequally accurate measurement