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80 Blackline Masters/STATISTICS USING THE SHARP EL-9600
Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Calculating the best-fitting line
1. Access the data entry screen and delete old data.
2. Enter the following data set:
X Y
11 35
14 30
17 28
21 23
26 21
29 19
3. Check the data you have entered and correct any errors you may find.
4. Find the best-fitting line (regression line) for the data.
5. Set up the scatter diagram.
6. Set the viewing window to Xmin = 10, Xmax = 30, Xscl = 5, Ymin = 15,
Ymax = 40, and Yscl = 5.
7. Press Y= CL to clear any previously entered expressions. Press
GRAPH to view the scatter diagram.
8. Overlay of the regression line and the scatter diagram, by pressing Y=
VARS , touch H STAT, press ENTER , touch B REGEQN, double touch
1 RegEqn, and press GRAPH .
LINEAR REGRESSIONS
8.2
NAME _____________________________________________________ CLASS __________ DATE __________