Concept explainers
a .
To graph: the given function.
a .
Answer to Problem 39E
Explanation of Solution
Given:
The IQ scores for a sample of students at a small college roughly follow the
Where x is the IQ score.
The graph of the function
b .
To estimate: the average IQ score of a student using the above graph.
b .
Answer to Problem 39E
100
Explanation of Solution
Given:
The IQ scores for a sample of students at a small college roughly follow the normal distribution
Where x is the IQ score.
The graph of the function
The average IQ score of a student is given by the x -coordinate of the highest point of the graph.
In this case the x -value corresponding to the maximum y -value is 100.
Conclusion:
The average IQ score of a student is 100.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
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