User's Manual

20070201
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
6-3-11
Calculating and Graphing Paired-Variable Statistical Data
*
1
You cannot edit regression formulas for graph
formulas in the GRAPH mode.
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
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.