The deviation from the mean are 0, -6, 3, -3, 6, 0. Find the variance.

The deviation from the mean are 0, -6, 3, -3, 6, 0.  Find the variance.
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1 Answer

Square the deviations.

Add the squares together.

Divide by the size of the dataset.

The result is the variance.

That is:

(0+36+9+9+36+0)/6=90/6=15.

by Top Rated User (1.2m points)

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