How to calculate sum of deviations of individual data points from their mean?
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Step-by-step explanation:
First, determine n, which is the number of data values. Then, subtract the mean from each individual score to find the individual deviations. Then, find the sum of the squares of the deviations...can you see why we squared them before adding the values? Divide the sum of the squares of the deviations by n-1.
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