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Blackline Masters/STATISTICS USING THE SHARP EL-9600 85
Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Use the data from Blackline Master 9.1.
Activity 3 Calculate the inverse regression model.
1. Y = a + bX
-1
= _______________
2. r
2
= _______________
3. Sketch the scatter diagram and regression line overlay.
Activity 4 Which regression model fits the best?
1. r
2
for linear regression = _______________
2. r
2
for quadratic regression = _______________
3. r
2
for exponential regression = _______________
4. r
2
for common logarithm regression = _______________
5. r
2
for power regression = _______________
6. r
2
for inverse regression = _______________
7. Which model fits the best according to r
2
? ____________
8. Which model fits the best graphically? _______________
OTHER REGRESSIONS
AND MODEL OF “BEST FIT”
9.4
NAME _____________________________________________________ CLASS __________ DATE __________