Homework Help: Statistics

Posted by Jen on Wednesday, October 12, 2011 at 4:44pm.

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20

Statistics - PsyDAG, Thursday, October 13, 2011 at 11:59am
Z = (score-mean)/SD

SD^2 = variance

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