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February 27, 2015

February 27, 2015

Posted by **Jasmine** on Sunday, March 25, 2012 at 2:36am.

- Statistics -
**PsyDAG**, Sunday, March 25, 2012 at 2:01pmFind 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.

Standard deviation = square root of variance

95% = mean ± 1.96 SD

I'll let you do the calculations.

- Statistics -
**haylee**, Monday, November 19, 2012 at 11:10am(16.66,12.74)

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