Answer
$r=-0.195$
Now, we can not say that there is as linear relation between the weight of a car and its miles per gallon.
Work Step by Step
In MINITAB, enter the weight values in C3 and in C4 enter the miles per gallon values (do not forget to change the values).
Select Stats -> Basic Statistics -> Correlation
In "Variables" enter C3 C4.
You may deselect "Display p-values".
The correlation between weight and miles per gallon will be given.
