Scatterplots, Correlation, and the Regression Line The data from Example 2.16 give the front and rear leg rooms (in centimetres) for nine different sport-utility ve- hicles, as shown in Table 3.9:

1. If you did not save the MINITAB worksheet from Chapter 2, enter the data into the first three columns of another MINITAB worksheet, using the labels in the table. To examine the relationship between the front and rear leg rooms, you can plot the data and numerically describe the relationship with the correlation coefficient and the best-fitting line. 2. Select Stat Regression Fitted Line Plot, and select "Front Leg Room" and "Rear Leg Room" for Y and X, respectively (see Figure 3.17(a)). Make sure that the radio button next to Linear is selected, and click OK. The plot of the nine data points and the best-fitting line will be generated as in Figure 3.17(b).

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Front and Rear Leg Room in Sport Utility Vehicles Make & Model Front Leg Room Rear Leg Room Acura MDX 104.1 72.4 Buick Enclave 105.4 76.2 Chevy TrailBlazer 101.6 64.8 Chevy Tahoe Hybrid VB CVT 104.1 69.9 GMC Terrain 1L 4-cyl 109.2 78.7 Honda CR-V 104.1 74.9 Hyundai Tucson Kia Sportage Lexus GX 108.0 74.9 101.6 73.7 106.7 76.2