Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual page 158

3. Pressing or a number key at this time causes the
so you can perform another estimated value calculation if you want.
• The pointer does not appear if the calculated coordinates are not within the display range.
• The coordinates do not appear if "Off" is specified for the "Coord" item of the Setup screen.
• The Y-CAL function can also be used with a graph drawn by using DefG feature.
Regression Formula Copy Function from a Regression Calculation Result
Screen
In addition to the normal regression formula copy function that lets you copy the regression
calculation result screen after drawing a statistical graph (such as Scatter Plot), the STAT
mode also has a function that lets you copy the regression formula obtained as the result of a
regression calculation. To copy a resulting regression formula, press
Estimated Value Calculation ( , )
After drawing a regression graph with the STAT mode, you can use the RUN • MAT (or RUN)
mode to calculate estimated values for the regression graph's
Example To perform a linear regression using the nearby data and estimate the
values of
1. From the Main Menu, enter the STAT mode.
2. Input data into the list and draw the linear regression graph.
3. From the Main Menu, enter the RUN • MAT (or RUN) mode.
4. Press the keys as follows.
The estimated value
The estimated value
• You cannot obtain estimated values for a Med-Med, quadratic regression, cubic regression,
quartic regression, sinusoidal regression, or logistic regression graph.
and when
xi 10
yi 1003
xi
(value of )
(STAT)* ( )
II
* fx-7400G : (STAT)
xi
is displayed for
yi
(value of
ˆ x
( )
ˆ x yi
is displayed for
x
-value input dialog box to reappear
x
xi yi
= 20 and = 1000
15 20
1005 1010
= 20.
)
= 1000.
6-18
(COPY).
y
and parameters.
25 30
1011 1014