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The registrar at Eastern University studied the grade point average (GPAs) of its students. The GPAs are normally distributed with a mean of 2.8 and

The registrar at Eastern University studied the grade point average (GPAs) of its students. The GPAs are normally distributed with a mean of 2.8 and a standard deviation of 0.4.

a) What percentage of students have a GPA of 3.8 or higher?
b) Any student with a GPA of 3.8 or higher makes it on to the Deans list. If 93 students are on the Deans list, how many students are there at Eastern University?
c) What percentage of students have a GPA below 1.0?

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