Standard deviation
01
标准差, 标准偏差
a measure of how much the values in a set typically differ from the average
例子
A low standard deviation indicates that the data points are close to the mean.
低标准差表示数据点接近平均值。
The standard deviation of test scores showed that most students scored around the average.
测试分数的标准差显示大多数学生的分数在平均值附近。
