To figure the variance on a group of numbers, you must first figure out the mean, which is the average of the set. Then, substract the mean from each number in the set. Square the result of those substractions, and then average the squares. You will then have the variance.
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Square the standard deviation to obtain the variance. The variance is 62 or 36.
The standard deviation is defined as the square root of the variance, so the variance is the same as the squared standard deviation.
The error in which a particular numbers are set apart is called error variance.
5.142857143 is the mean.12.43956044 is the variance.3.526976104 is the standard deviation.
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