In this section, we shall create a scatter plot for the Beer.sys file. If you have trouble locating files with the ".sys" extension, please refer to Section Three: Opening an existing dataset.

We shall also demonstrate how to use the "Best Fit Line" option.

Once the Beer.sys dataset is open, pull down the Graphs menu and choose the Scatter/Dot option under the Legacy Diaglog sub-menu. At the Scatter/Dot window, click once on the Simple Scatter icon and click the "Define" button.

Figure 6.1

At the Simple Scatterplot window, choose the variables you want on the X-axis and Y-axis. We have chosen "Calories" vs. "Cost."

Figure 6.2

Once you have chosen your parameters, click "OK." An output window will appear with the scatter plot.

Figure 6.3

To display the fit line of a given scatter plot, right-click on the scatter plot and choose In Separate Window under the Edit Content sub-menu.

Figure 6.4

Once you select In Separate Window , the Chart Editor window will open. To get the Fit-Line Total, click on the Elements menu and choose the Fit Line at Total option.

Figure 6.5

Once you choose the fit-line type, the chart will display the fit line as shown in Figure 6.6.

Figure 6.6