Posted by **Anonymous** on Sunday, September 5, 2010 at 1:26pm.

these numbers:

20,17,21,15,16,15,12,14,15,19,21,17,20,22,16,

19,21,13,22,14,15,18,20,13,18,16,15,19

the mean is 17.25

the range is 10

what would you give as the pass mark?

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