The IQ scores for a sample of students at a small college roughly follow the normal distribution

Question:

The IQ scores for a sample of students at a small college roughly follow the normal = 0.0266e−(x−100)2/450, 70 ≤ x ≤ 115
where x is the IQ score.
(a) Use a graphing utility to graph the function.
(b) From the graph in part (a), estimate the average IQscore of a student.
Distribution
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