
Mark M. answered 03/04/15
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Mathematics Teacher - NCLB Highly Qualified
Here is a z-score chart
https://www.stat.tamu.edu/~lzhou/stat302/standardnormaltable.pdf
A z-score of 0.0 is at the mean, median, and mode of a normal distribution. 50% of the distribution is above (to the right) and 50% of the distribution is below (to the left).