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Posted by **Rachal** on Sunday, February 13, 2011 at 5:08pm.

112, 96, 109, 126, 99, 106

Assuming that these weights constitute an entire population, find the standard deviation of the population. Round your answer to at least two decimal places.

Mean=648/6= 108

I can find the mean but can’t remember what I do next.

- Statistics- I'm stuck and its due tonight -
**PsyDAG**, Monday, February 14, 2011 at 12:21pmSubtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

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