Asked by slomomo

Find the area of the shaded region.The graph to the right depicts IQ scores of Adults (85-120), and those scores are normally distributed with a mean of 100 and a standard deviation of 15
Answered by Steve
you can play around a lot with Z table stuff here:

http://davidmlane.com/hyperstat/z_table.html
Answered by PsyDAG
Another method:

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between the two Z scores.
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