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January 30, 2015

January 30, 2015

Posted by **Abby** on Monday, March 29, 2010 at 11:19am.

- statistics -
**PsyDAG**, Monday, March 29, 2010 at 12:05pmQ3 = 75 percentile

In a table in the back of your stat book labeled something like "areas under normal distribution," find the Z score equivalent. Put value in formula below.

Z = (x - μ)/ SD = (81-66)/SD

Solve for SD.

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