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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 xList data
Σx ................... sum of xList data
Σx
2
.................. sum of squares of xList data
xσn .................. population standard deviation of xList data
xσn-1 ................ sample standard deviation of xList data
n ..................... number of xList data items
_
y ..................... mean of yList data
Σy ................... sum of yList data
Σy
2
.................. sum of squares of yList data
yσn .................. population standard deviation of yList data
yσn-1 ................ sample standard deviation of yList data
Σxy .................. sum of the product of data stored in xList and yList
minX ............... minimum of xList data
maxX .............. maximum of xList data
minY ............... minimum of yList data
maxY .............. maximum of yList data
kk
kk
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
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