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Standard deviation
01
標準偏差, 平均偏差
a measure of how much the values in a set typically differ from the average
standard deviation
n
例
In finance, a high standard deviation of returns suggests higher volatility.
A low standard deviation indicates that the data points are close to the mean.
The standard deviation of test scores showed that most students scored around the average.
Calculating the standard deviation helps understand the spread of the data set.
A standard deviation of zero means all the values are identical.
