Casio CFX-9970G, User Manual

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Now you can use the cursor keys to view the characteristics of the variables.
For details on the meanings of these statistical values, see “Displaying Single-
Variable Statistical Results”.
k k
k k k
Paired-Variable Statistical Calculations
In the previous examples from “Linear Regression Graph” to “Sine Regression
Graph,” statistical calculation results were displayed after the graph was drawn.
These were numeric expressions of the characteristics of variables used in the
graphic display.
These values can also be directly obtained by displaying the statistical data list
and pressing
2
(CALC)
2
(2VAR).
Now you can use the cursor keys to view the characteristics of the variables.
P.266 For details on the meanings of these statistical values, see “Displaying Paired-
Variable Statistical Results”.
k k
k k k
Regression Calculation
In the explanations from “Linear Regression Graph” to “Sine Regression Graph,”
regression calculation results were displayed after the graph was drawn. Here, the
regression line and regression curve is represented by mathematical expressions.
You can directly determine the same expression from the data input screen.
Pressing
2
(CALC)
3
(REG) displays a function menu, which contains the
following items.
• { X } / { Med } / { X^2 } / { X^3 } / { X^4 } / { Log } / { Exp } / { Pwr } / { Sin } ... {linear regression}/
{Med-Med}/{quadratic regression}/{cubic regression}/{quartic regression}/
{logarithmic regression}/{exponential regression}/{power regression}/
{sine regression} parameters
Example To display single-variable regression parameters
2 (CALC) 3 (REG) 1 (X)
The meanings of the parameters that appear on this screen are the same as those
for “Linear Regression Graph” to “Sine Regression Graph”.
18 - 5
Performing Statistical Calculations
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