Casio ALGEBRA FX 2.0 Manual page 20

Calculating and Graphing Paired-Variable Statistical Data
k k k k k Displaying the Calculation Results of a Drawn Paired-Variable Graph
Paired-variable statistics can be expressed as both graphs and parameter values. When
these graphs are displayed, the paired-variable calculation results appear as shown below
when you press 4(CALC)b(2VAR).
• Use c to scroll the list so you can view the items that run off the bottom of the screen.
o
............... mean of data stored in
x
Σ ............. sum of data stored in
2
x
Σ ........... sum of squares of data
stored in
x
σ ............ population standard
n
deviation of data stored in
x
List
x
σ .......... sample standard deviation
n -1
of data stored in
n
............... number of data
p
............... mean of data stored in
y
Σ ............. sum of data stored in
k k k k k Copying a Regression Graph Formula to the GRPH
You can copy regression formula calculation results to the GRPH
area, and store and compare.
1. Press 5(COPY) to copy the regression formula that produced the displayed data to
the GRPH TBL Mode graph formula area*
•
2. Press w to save the copied graph formula and return to the previous regression
calculation result display.
1
* You cannot edit regression formulas for graph
formulas in the GRPH
6-3-11
x
List
x
List
x
List
x
List
y
List
y
List
TBL Mode.
•
19990401
y
2 ...... sum of squares of data stored in
Σ
y
σ ...... population standard deviation of data
n
y
stored in List
y
.... sample standard deviation of data
σ
n
-1
y
stored in List
xy .....
Σ sum of data stored in
minX ... minimum of data stored in
maxX .. maximum of data stored in
minY ... minimum of data stored in
maxY .. maximum of data stored in
TBL Mode
•
TBL Mode graph formula
•
1
.
y
List
x y
List and List
x
List
x
List
y
List
y
List