Measure Up Activity Sheet (Linear Regression)

Wrist Circumference and Height Correlation

1. Do you expect to see a positive, negative, or zero correlation in this activity? ____________________________________________

2. What is the correlation of wrist circumference to height? ________

3. What does this correlation number mean? ______________________________________________________________________________________________________________

4. Using the regression line find how tall a person would be if they had a wrist size of 12 inches. __________________

5. Does this seem reasonable? ______________

6. Why or why not? _______________________________________

______________________________________________________

7. How tall would a person be who has a 5 _ inch wrist size?__________

8. What is the equation that the calculator is using to find height given wrist size? ____________________________________________

9. Could we use the above equation for all the people in the United States? _______________

10. Why or why not? ______________________________________________________________________________________________________________

Celebrity Body Fat

Enter the columns for weight in L1 and percent fat in L2. Find the correlation and do a linear regression.

11. What is the correlation of weight to percent body fat? ___________

12. What does the correlation mean? ___________________________

_______________________________________________________

13. What is unusual about the graph? ___________________________

_______________________________________________________

14. Could this linear regression be used to accurately predict height given wrist measurement for other people in the general population? Why? ________________________________________________________

________________________________________________________

________________________________________________________

15. How could this lesson have been improved to make understanding clearer? ________________________________________________________

________________________________________________________

________________________________________________________

Celebrity Body Fat Chart
 
Names
Weight*
Lb.
Waist*
Inches
Fat
%
Fat
Lb.
Lean Body Mass
Lb.
Goldie Hawn
113
24
12.01
13.57
99.43
Demi Moore (1980)
105
22
5.65
5.93
99.07
Demi Moore (1996)
120
26
17.75
21.30
98.70
Lucy Lawless
150
25
9.79
14.69
135.31
Alicia Silverstone
107
24
13.15
14.07
92.93
Jane Fonda (1968)
118
24
11.16
13.16
104.84
Madonna (1984)
110
25
16.34
17.97
92.03
Madonna (1990)
115
23
8.05
9.26
105.74
Janet Jackson
110
22
5.02
5.52
104.48
Kate Moss
105
23
9.60
10.08
94.92

 

Body Fat Female Celebrity

http://members.aol.com/fatguy2/CelebrityBodyFat.html