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December 20, 2014

December 20, 2014

Posted by **Becky** on Thursday, October 13, 2011 at 5:02pm.

- statistics -
**MathGuru**, Friday, October 14, 2011 at 5:54pmUse z-score formula and solve for standard deviation:

z = (x - mean)/sd

-1.63 = (23 - 35)/sd

Solve for sd.

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