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April 20, 2014

April 20, 2014

Posted by **melba** on Tuesday, May 22, 2012 at 9:47pm.

- statistics college -
**PsyDAG**, Wednesday, May 23, 2012 at 10:12pmFind 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

Range = highest score - lowest

I'll let you do the calculations.

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