Casio fx-9860G SD - Manual (Page 297)

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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 1(CALC)1(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
Σ x ............. sum of data stored in x List
Σ x 2 ........... sum of squares of data
stored in x List
x σ
n
............ population standard
deviation of data stored in
x List
x σ
n -1
.......... sample standard deviation
of data stored in x List
n ............... number of data
p ............... mean of data stored in y List
Σ y ............. sum of data stored in y List
k k k k k Copying a Regression Graph Formula to the GRAPH Mode
You can copy regression formula calculation results to the GRAPH mode graph relation list,
and store and compare.
1. While a regression calculation result is on the display (see “Displaying Regression
Calculation Results” on page 6-3-5), press 5(COPY).
• This will display the GRAPH mode graph relation list.* 1
2. Use f and c to highlight the area to which you want to copy the regression formula
of the displayed result.
3. 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
Σ y 2 ...... sum of squares of data stored in y List
y σ
n
...... population standard deviation of data
stored in y List
y σ
n -1
.... sample standard deviation of data
stored in y List
Σ xy ..... sum of the product 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 GRAPH
mode.