Wednesday

January 28, 2015

January 28, 2015

Posted by **kylee** on Thursday, April 18, 2013 at 10:16pm.

46, 47, 52, 54, 61, 64, 69

57, 57, 57, 57, 58, 61, 61

- statistic -
**PsyDAG**, Friday, April 19, 2013 at 12:36pmHere is a start.

Find 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

I'll let you do the calculations.

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