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Calculator Operations
Turn the calculator on and press STAT to enter the statistics menu. Touch
A EDIT and press ENTER to access the data entry screen. Delete old data
and enter the following data set:
X
Y
610
22 19
34 31
42 39
45 47
48 58
47 66
Please refer to Chapter 5 for discussion on entering a non-weighted two-variable
data set. Check the data you have entered and correct any errors you may find.
Set up the scatter diagram by pressing 2ndF STAT PLOT , touching A PLOT1,
pressing ENTER ENTER ▼ ENTER ▼ 2ndF L1 ENTER 2ndF
L2 ENTER 2ndF STAT PLOT , touching G S.D., and double touching 3 Scattr.
Display the scatter diagram for the data (Please refer to Chapter 7 for discussion
of how to display a scatter diagram) by pressing WINDOW and setting Xmin =
0, Xmax = 50, Xscl = 5, Ymin = 0, Ymax = 70, and Yscl = 5. Clear any expressions
entered in the Y prompts by pressing Y= CL . Press GRAPH to view the
scatter diagram shown below:
To find the best-fitting exponential curve (Y = a*ebX) for the data, press
STAT touch D REG, touch on the screen, double touch 10 Rg_aebx, and
press ENTER . The following values for the regression will appear:
▼
×
+
–
÷
➧
Other Regressions and Model of “Best Fit”/STATISTICS USING THE SHARP EL-9600 45