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September 20, 2014

September 20, 2014

Posted by **tamara** on Sunday, October 21, 2012 at 9:35am.

- stats -
**PsyDAG**, Sunday, October 21, 2012 at 2:05pmZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.67) and insert its Z score in the equation above to solve for SD.

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