Asked by sue

The result of an exam score for a given class is normally distributed. If the mean score is
85 points and the standard deviation is equal to 20 points, find the cutoff passing grade
such that 83.4% of those taking the test will pass.
Answered by Steve
you can play around with Z-table stuff here:

http://davidmlane.com/hyperstat/z_table.html
Answered by zemene
45
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