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Title: Grades for a statistics exam for a certain class follow the normal probability distribution with a ... Post by: gracehiller11 on Jan 26, 2018 Grades for a statistics exam for a certain class follow the normal probability distribution with a mean of 82 and a standard deviation of 12 . What percentage of the students in the class earned a B grade (80-89)?
Title: Grades for a statistics exam for a certain class follow the normal probability distribution with a ... Post by: tiss9889 on Jan 26, 2018 Content hidden
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