Soffía is studying civil engineering. Its department has 120
students. Grades are approximately normally distributed with a mean
of 6.8 and a standard deviation of 0.9.
How many students have a grade point average of 0.7 standard
deviations below average?
a) about 43
b) about 10
c) about 29
d) about 80
Soffía is studying civil engineering. Its department has 120 students. Grades are approximately normally distributed wit
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Soffía is studying civil engineering. Its department has 120 students. Grades are approximately normally distributed wit
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