Chapter 16: Statistics and Data Plots 255
16STATS.DOC TI-89/TI-92 Plus: Statistics and Data Plots (English) Susan Gullord Revised: 02/23/01 1:12 PM Printed: 02/23/01 2:17 PM Page 255 of 22
Steps
³
TI-89
Keystrokes
›
TI-92 Plus
Keystrokes Display
6. Display the
Calculate dialog box.
Set:
Calculation Type = MedMed
x = C1
y = C2
Store RegEQ to = y1(x)
‡
B7D
Cj1D
jC2D
BD¸
‡
B7D
C1D
C2D
BD¸
7. Perform the calculation to
display the MedMed regression
equation.
As specified on the
Calculate
dialog
box, this equation is stored in y1(x).
¸¸
8. Close the
STAT VARS screen.
The Data/Matrix Editor displays.
¸¸
9. Display the
Calculate dialog box.
Set:
Calculation Type = LinReg
x = C1
y = C2
Store RegEQ to = y2(x)
‡
B5D
D
D
BD¸
‡
B5D
D
D
BD¸
10. Perform the calculation to
display the LinReg regression
equation.
This equation is stored in y2(x).
¸¸
11. Close the STAT VARS screen.
The Data/Matrix Editor displays.
¸¸
12. Display the Plot Setup screen.
Plot 1 is highlighted by default.
…
lets you clear highlighted Plot
settings.
„„
13. Define Plot 1 as:
Plot Type = Scatter
Mark = Box
x = C1
y = C2
Notice the similarities between this
and the
Calculate
dialog box.
ƒ
B1D
B1D
Cj1D
jC2
ƒ
B1D
B1D
C1D
C2
14. Save the plot definition and
return to the Plot Setup screen.
Notice the shorthand notation for Plot
1’s definition.
¸¸ ¸¸