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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
Example
A low standard deviation indicates that the data points are close to the mean.
较低的标准差表示数据点接近均值。
The standard deviation of test scores showed that most students scored around the average.
测试成绩的标准差显示大多数学生的分数围绕平均值徘徊。
