Sharp EL-9650, Operation Manual, Page: 187 / 373

177
STATISTICS/ REGRESSION CALCULATIONS
for US
11. Press
®
to display the regression formula and
parameters as shown on the right.
12. Press
to draw a regression curve using the found
parameter values and the scatter diagram.
• A regression curve close to the estimated point was
found.
• If there is a large difference between the regression
curve and plotted dots of the statistical data, change
the regression curve and repeat steps 9 through 12.
* If a formula already exists in the formula number for entering the regression formula, existing
contents will be replaced by the new contents.
About the residual list
• There are residuals between regression curves and actual values.
• The residual list stores these residuals automatically.
• [resid] list can be found in [B REGEQN][0 resid] of the STAT VARS menu
( [H STAT]).
• Use the following key operation to recall the residual list from the standard function
calculation screen.
¬ H®B0
• Press
®
to display the residual list on-screen.
• To show the residual list in the form of a graph, first store as a list, then follow the
graphing operation.
* [resid] cannot be graphed when specified independently.
EL-9650-(07)En (157-177) 8/1/00, 9:06 AM 177