Plotting

You can plot:

•histograms ( ￿9$5￿_)

•box-and-whisker plots ( ￿9$5￿_)

•scatter plots of data ( ￿9$5￿_).

To plot statistical data

H I N T

Once you have entered your data (>180@), defined your data set (>6<0%@), and defined your Fit model for two-variable statistics (>6+,)7@SETUP-SYMB), you can plot your data. You can select up to five scatter or box-and-whisker plots at a time. You can plot only one histogram at a time.

1.In Symbolic view (>6<0%@), select (_￿&+._) the data sets you want to plot.

2.For one-variable data (￿9$5￿_), select the plot type in Plot Setup (>6+,)7@SETUP-PLOT). Highlight STATPLOT, press &+226_, select either Histogram or BoxWhisker, and press 2._.

3.For any plot, but especially for a histogram, adjust the plotting scale and range in the Plot Setup view. If you find histogram bars too fat or too thin, you can adjust them with the HWIDTH setting.

4.Press >3/27@. If you have not adjusted the Plot Setup yourself, you can try >9,(:6@ select Auto Scale 2._.

Auto Scale can be relied upon to give a good starting scale which can then be adjusted in the Plot Setup view.

Statistics aplet

8-15