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December 21, 2014

December 21, 2014

Posted by **margie** on Thursday, April 14, 2011 at 2:47pm.

2. what percentage of the pay amounts lie within 1 standard deviations of the mean?

3. what percentage of the pay amounts lie within 2 standard deviations of the mean?

4. what percentage of the pay amounts lie within 3 standard deviations of the mean?

5. what is the range of the pay amounts?

- finite math(?) -
**PsyDAG**, Thursday, April 14, 2011 at 8:59pmWhat distribution?

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

http://en.wikipedia.org/wiki/File:The_Normal_Distribution.svg

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