Casio ALGEBRA FX 2.0, User Manual

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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
List
$
x
............. sum of data stored in
x
List
$
x
2 ........... sum of squares of data
stored in
x
List
x
#
n
............ population standard
deviation of data stored in
x
List
x
#
n
-1
.......... sample standard deviation
of data stored in
x
List
n
............... number of data
p
............... mean of data stored in
y
List
$
y
............. sum of data stored in
y
List
k k k k k
Copying a Regression Graph Formula to the GRPH
•
TBL Mode
You can copy regression formula calculation results to the GRPH
•
TBL Mode graph formula
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*
1
.
2. Press
w
to save the copied graph formula and return to the previous regression
calculation result display.
6-3-11
Calculating and Graphing Paired-Variable Statistical Data
$
y
2
...... sum of squares of data stored in
y
List
y
#
n
...... population standard deviation of data
stored in
y
List
y
#
n
-1
.... sample standard deviation of data
stored in
y
List
$
xy .....
sum of data stored in
x
List and
y
List
minX ... minimum of data stored in
x
List
maxX .. maximum of data stored in
x
List
minY ... minimum of data stored in
y
List
maxY .. maximum of data stored in
y
List
* 1 You cannot edit regression formulas for graph
formulas in the GRPH
•
TBL Mode.