Texas Instruments TI-83 Manual Book page 327

26. Press s. The regression line and the
scatter plot are displayed.
The new function y=.192x
information, examine a residual plot.
27. Press o to display the
Press | Í to deselect
Press } Í to turn off plot 1. Press ~
Í to turn on plot 2.
Note: Step 19 defined plot 2 to plot residuals
( RESID ) versus string length ( L
28. Press q
menu. The window variables are
ZOOM
adjusted automatically, and plot 2 is displayed.
This is a scatter plot of the residuals.
The new residual plot shows that the residuals are random in sign, with
the residuals increasing in magnitude as the string length increases.
TI-83 Plus Statistics
.522
appears to fit the data well. To get more
editor.
Y=
to select
9 9:ZoomStat
.
Y
1
).
1
from the
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