Concept explainers
a.
To explain: the given situation with the help of an example.
a.
Answer to Problem 12E
The
Explanation of Solution
Given information:
The
Calculation:
Let the correlation coefficient
The example for the undesirable desirable
b.
To explain: the given situation with the help of an example.
b.
Answer to Problem 12E
The correlation coefficient between the height and weight is good
Explanation of Solution
Given information:
The correlation coefficient of 0.6 is considered good.
Calculation:
The correlation between the height and weight data is 0.6. It’s not a very moderate strong relationship, but it accurately represents the data.
c.
To explain: the given situation with the help of an example.
c.
Answer to Problem 12E
If a car decreases speed, travel time to a destination increases.
Explanation of Solution
Given information:
A strong
Calculation:
The example for the desirable strong negative correlation coefficient is that, if a car decreases speed, travel time to a destination increases.
Let the correlation coefficient
Chapter 1 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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