here exists Grades on an examination with a mean of 76 and standard deviation of 6.5. a.) What is the percentage of the students that will have a grade between 72 and 85? 2. Assume that 12% of the class is given a grade of 4.0. Give the lowest possible grade for a 4.0.

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There exists Grades on an examination with a mean of 76 and
standard deviation of 6.5.
a.) What is the percentage of the students that will
have a grade between 72 and 85?
2. Assume that 12% of the class is given a grade
of 4.0. Give the lowest possible grade
for a 4.0. 

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