Casio fx-9750G PLUS - Manual (Page 296)

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• Use c to scroll the list so you can view the items that run off the bottom of the
screen.
_
x ..................... mean of x List data
Σ x ................... sum of x List data
Σ x 2 .................. sum of squares of x List data
x σ
n
.................. population standard deviation of x List data
x σ
n -1
................ sample standard deviation of x List data
n ..................... number of x List data items
_
y ..................... mean of y List data
Σ y ................... sum of y List data
Σ y 2 .................. sum of squares of y List data
y σ
n
.................. population standard deviation of y List data
y σ
n -1
................ sample standard deviation of y List data
Σ xy .................. sum of the product of data stored in x List and y List
minX ............... minimum of x List data
maxX .............. maximum of x List data
minY ............... minimum of y List data
maxY .............. maximum of y List data
k k k k k
Copying a Regression Graph Formula to the Graph Mode
After you perform a regression calculation, you can copy its formula to the
GRAPH Mode.
The following are the functions that are available in the function menu at the
bottom of the display while regression calculation results are on the screen.
• { COPY} ... {stores the displayed regression formula to the GRAPH Mode}
• { DRAW} ... {graphs the displayed regression formula}
1. Press 5 (COPY) to copy the regression formula that produced the displayed
data to the GRAPH Mode.
Note that you cannot edit regression formulas for graph formulas in the GRAPH
Mode.
2. Press w to save the copied graph formula and return to the previous
regression calculation result display.
18 - 4
Calculating and Graphing Paired-Variable Statistical Data