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April 21, 2014

April 21, 2014

Posted by **sonia** on Tuesday, September 6, 2011 at 11:40am.

- math -
**PsyDAG**, Tuesday, September 6, 2011 at 12:13pmMean = sum of scores/number of scores

70 = (73+86+x)/3

Solve for x.

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