hp 40gs_user's guide_English_E_HDPMSG40E07A

10-4 Statistics aplet

Setup plot 8. Change the plotting range to ensure all the data

points are plotted (and select a different point mark, if

you wish).

SETUP-PLOT

100

4000

Plot the graph 9. Plot the graph.

Draw the

regression curve

10.Draw the regression curve (a curve to fit the data

points).

This draws the

regression line for the

best linear fit.

Display the

equation for

best linear fit

11.Return to the Symbolic view.

12.Display the equation for the best linear fit.

to move to the

FIT1 field

The full FIT1

expression is shown.

The slope (m) is 425.875. The y-intercept (b) is

376.25.

hp40g+.book Page 4 Friday, December 9, 2005 1:03 AM