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Chapter 8: Statistics & Regression Calculations
1. Press S A E.
Enter a data in a
list table
2. Enter the time into list 1 (L1).
3. Enter the temperature into list 2 (L2).
1. Press [ A E.
Plotting the data
2. Press E to turn on the plotting.
3. Press } and ' to select XY of DATA menu and press
1. Press } to move the cursor to GRAPH.
Selecting the
graph type
2. Press [ G and 2 (2 Scattr+) to set the graph type
3. Press Z A 9 (9 Stat) to plot the scatter diagram
• Selecting A 9 in the ZOOM mode allows for quick
graphing in an optimum range since window setting values of the
graph plotting screen are automatically set using the list data.
1. Press # C S D 0 5 (05 Rg_x
Drawing a
regression
2. Press ( @ 1 , @ 2 , @
curve using
quadratic
regression
3. Press E.
4. Press G.
5. If there is a large difference between the regression curve and
166
E.
Freq will change to ListY and set L2 to ListY.
to scatter and point type to "
for this data.
z A E A 1 ).
If you enter Y1 as the last variable, the obtained formula will
automatically be set to the formula Y1.
The regression formula and parameters will be displayed on the
screen.
The calculator will draw the scatter diagram using the
determined parameter values.
plotted dots, change the regression curve and repeat the above
procedures.
+
".
2
).
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