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January 31, 2015

January 31, 2015

Posted by **Mike** on Tuesday, February 28, 2012 at 10:03pm.

- statistics -
**PsyDAG**, Wednesday, February 29, 2012 at 12:15pmMean = Σx/n

26 = Σx/20

Σx = 520 - 20 = 500

new Mean = 500/20 = ?

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