Casio CFX-9850G PLUS, User'S Manual & Technical Reference

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Performing Statistical Calculations
18 - 5
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 “Logistic 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.267 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 “Logistic 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 } / { Lgst } ... {linear regres-
sion}/{Med-Med}/{quadratic regression}/{cubic regression}/{quartic
regression}/{logarithmic regression}/{exponential regression}/{power
regression}/{sine regression}{logistic regression} parameters
Example To display single-variable regression parameters
2
(CALC)
3
(REG)
1
(X)
The meaning of the parameters that appear on this screen is the same as that for
“Linear Regression Graph” to “Logistic Regression Graph”.
P.259