Chapter 7 statistical graphs and calculations – Casio fx-7400G PLUS Statistical Graphs and Calculations User Manual
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Chapter 7
Statistical Graphs and Calculations
[
1 (Log) ......... Logarithmic regression
2 (Exp) ......... Exponential regression
3 (Pwr) ......... Power regression
4 (2VAR) ...... Paired-variable statistical results
Press [ to return to the previous menu.
k
k
k
k
k Displaying Statistical Calculation Results
Whenever you perform a regression calculation, the regression formula parameter
(such as
a
and
b
in the linear regression
y
=
ax
+
b
) calculation results appear on the
display. You can use these to obtain statistical calculation results.
Regression parameters are calculated as soon as you press a function key to select
a regression type while a graph is on the display.
Example
To display logarithmic regression parameter calculation results
while a scatter diagram is on the display
[1(Log)
k
k
k
k
k Graphing statistical calculation results
You can use the parameter calculation result menu to graph the displayed regres-
sion formula.
3 (COPY) ..... Stores the displayed regression formula as a graph function
4 (DRAW) .... Graphs the displayed regression formula
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