How to Perform a Cubic Regression If a cubic polynomial is a
good fit for the data on a scatter plot, you need to perform a
cubic regression. You can do this in the TI-Nspire Lists &
Spreadsheets application. To perform a regression, follow these
steps: to move back to the Lists & Spreadsheet page containing
the data needed. Press [MENU]→Statistics→Stat Calculations→Cubic
Regression. A dialog box opens. As with any dialog box, you can
press [TAB] to move from one field to the next or [SHIFT][TAB]
to move backward through the fields. Press [ENTER] at any time
for the configuration to take effect. Notice in the first screen
that pressing [CLICK] and selecting year enables you to specify
the location of the X List. You could also specify the column by
its letter reference. In the second screen, pressing [D][CTRL][
( ] enables you to indicate where you want the results to be
stored. Column D because it is the first available empty column.
The third and fourth screens (with columns D and E widened) show
that the r