Essay
A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45. If GPA is normally distributed, what percentage of the students has GPAs Z score Area.
a. less than 2.30
b. less than 2.00
c. more than 2.00
d. more than 3.00
e. between 2.50 and 3.50
f. between 2.00 and 2.50
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