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October 1, 2014

October 1, 2014

Posted by **christopher** on Tuesday, December 11, 2012 at 3:36am.

- stat -
**PsyDAG**, Tuesday, December 11, 2012 at 11:45amFind the mean first = sum of scores/number of scores

Subtract 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.

I'll let you do the calculations.

- stat -
**christopher**, Tuesday, December 11, 2012 at 11:54amI got 42.95

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