
Concept explainers
a.
Explain the real-world quantities that represent
a.

Answer to Problem 14HP
The real-world example is the age of the human being increases, the weight also increases.
Explanation of Solution
Given information:
Provide real-world quantities that represent each of the following.
Positive
Calculation:
For a positive correlation, if one variable increases, then other variable also increases. The best real-world example is the age and weight of the human being. As the age of the human being increases, the weight also increases. So it shows positive correlation.
Hence, the real-world example is the age of the human being increases, the weight also increases.
b.
Explain the real-world quantities that represent
b.

Answer to Problem 14HP
The real world example is the time to the battery increases, the usage goes down.
Explanation of Solution
Given information:
Provide real-world quantities that represent each of the following.
Negative correlation
Calculation:
For a negative correlation, if one variable increases, then other variable decreases or vice The best real-world example is the time and usage of the standard battery. As the time to the battery increases, the usage goes down. So it shows negative correlation.
Hence, the real world example is the time to the battery increases, the usage goes down.
c.
Explain the real-world quantities that represent No correlation.
c.

Answer to Problem 14HP
The best real-world example is the person’s height and his or her income.
Explanation of Solution
Given information:
Provide real-world quantities that represent each of the following.
No correlation
Calculation:
For no correlation, the two variables are not related to each other. The best real-world example is the person’s height and his or her income. There is no relation between these two variables. So it shows no correlation.
Hence, the best real-world example is the person’s height and his or her income.
Chapter 2 Solutions
Algebra 2
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University Calculus: Early Transcendentals (4th Edition)
Calculus: Early Transcendentals (2nd Edition)
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