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March 29, 2015

March 29, 2015

Posted by **Anonymous** on Thursday, July 7, 2011 at 5:29pm.

What is the percentile rank of a score of 89?

- statistics -
**PsyDAG**, Friday, July 8, 2011 at 6:59pmZ = (score-mean)/SD

Look up Z score on table in back ofr stats text labeled something like "areas under the normal distribution" to get proportion corresponding to the percentile rank (proportion equal to or below that score).

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