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Performing Statistical Calculations

u To view “residual” system variable values

(1)

(2)

(1)Tap here.

(2)Tap here, and enter “residual”.

• To input lower-case alpha characters, tap the soft keyboard’s 0tab.

(3)Tap w.

•Values assigned to the “residual” system variable shows the vertical distances between actually plotted points and the regression model.

•A positive value indicates a plot that is higher than the regression model, while a negative value indicates a plot that is lower.

Copying a Regression Formula to the Graph & Table Application

You can use the following procedure to copy the calculated result of a regression formula to the Graph & Table application. There you can use Graph functions to edit and graph the formula, and perform other operations.

u ClassPad Operation

(1)On the List window menu bar, tap [Calc] and then [Linear Reg].

(2)On the dialog box that appears, tap the [Copy Formula] down arrow button, and then select the Graph & Table line number (y1 through y20) to which you want to copy the formula.

(3)Tap [OK].

•This copies the calculated regression expression to the line (y1 through y20) you selected.

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