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Question by KendraL (60)

Can you explain standard deviation?

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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.

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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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