![]() ![]() Determining the variation between each data point relative to the mean is valuable for comparing sets of data that may have the same mean but a different range.įor example, the mean of the following two data sets is the same, but the latter is clearly more spread out: ![]() ![]() It’s calculated as the square root of the variance (the spread of numbers in a dataset). Standard deviation is a statistic that measures the dispersion of a dataset, relative to its mean. ![]()
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