Question by  KendraL (60)

Can you explain standard deviation?


Answer by  e36 (170)

A group of numbers will have an average. If you then work out the average distance of each number from the average of the numbers, that's the standard deviation.


Answer by  LohnJaw (122)

If you have a distribution of e. g. the heights of people, then the number of people within one standard deviation of the mean are about 68% of the group.

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