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January 30, 2015

January 30, 2015

Posted by **Angie** on Tuesday, November 13, 2012 at 10:41pm.

- Math -
**PsyDAG**, Wednesday, November 14, 2012 at 11:04amZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.72) and its Z score. Insert the Z score and other data in the equation above and solve for SD.

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