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The grade point average (GPA) of the students at Lakeview High School is normally distributed with a mean of 3.1 and a standard deviation of 0.3. If there are 1800 students enrolled at the school, approximately how many have a GPA between 2.5 and 3.7.

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Answer:

1710

Step-by-step explanation:

GPA = 3,1 +- 0,6

0,6 = 2*STDEV

As it is a normal distribution, the interval (Mean +- 2*STDEV) includes 95% of the students.

1800 * 0,95 = 1710

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