
Concept explainers
To make: a

Answer to Problem 26E
Relation between them is not linear, it is curved. That’s why correlation between them is 0.
Explanation of Solution
Given:
Speed | 20 | 30 | 40 | 50 | 60 |
Mileage | 24 | 28 | 30 | 28 | 24 |
Calculation:
The scatter plot of the given data is shown in below.
From the above scatter plot we see the relationship is curved indicated strength of the linear relationship. Values of r near 0 indicate a very week linear relationship it does not mean they are not related. In this case speed and mileage are strongly related but relation between them is not linear, it is curved. That’s why correlation between them is 0.
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