Suppose an exam has average 70 and standard deviation 15, and the scores are assumed to be normally distributed. Find the


Suppose an exam has average 70 and standard deviation 15, and the scores are assumed to be normally
distributed. Find the cut off score for the top 25% and the bottom 25% (That is, find the scores which 25% of
the class did better than and which 25% of the class did worse than).


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