Standard Deviation

The standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

A standard deviation close to 0 indicates that the data points tend to be very close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the data points are spread out over a wider range of values.

It is widely used in descriptive statistics.

Learn how to calculate the standard deviation.

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