Answer
$r=0.992$
Although $r\approx1$, we can not conclude that there is a positive linear relation between speed and braking distance. See the scatter diagram below. The sequence of points looks more quadratic than linear. This can be confirmed by observing the residual plot, which will reveal a distinct U-shaped pattern.
Work Step by Step
In MINITAB, enter the speed values in C1 and in C2 enter the braking distance values.
Select Stats -> Basic Statistics -> Correlation
In "Variables" enter C1 C2 You may deselect "Display p-values". The correlation between speed and braking distance will be given.
