HP 40gs User Manual page 108

hp40g+.book Page 4 Friday, December 9, 2005 1:03 AM
Setup plot
Plot the graph
Draw the
regression curve
Display the
equation for
best linear fit
10-4
8. Change the plotting range to ensure all the data
points are plotted (and select a different point mark, if
you wish).
-
SETUP PLOT
7
100
4000
9. Plot the graph.
10.Draw the regression curve (a curve to fit the data
points).
This draws the
regression line for the
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.
Statistics aplet