2. 1. Gold 2. Green 3. Purple 4. Pink 5. Gray

3. 1. 48 2. 15 3. 65 4. 33

4. 1. 7.25 2. 9.2 3. 72.5 4. 92

5. 1. Convenience Sampling 2. Systematic Sampling 3. Voluntary-Response 4. Random Sampling

6. 1. 1200 2. 1000 3. 800 4. 600

7. 4Purple 4Pink 3.75Gray 3.67Gold 3.57Green

8. 1. 0% 2. 25% 3. 50% 4. 75% 5. 100%

9. 1. 90, 75, 85, 100, 80 2. 100, 90, 65, 90, 100 3. 70, 80, 95, 100, 85 4. 95, 100, 75, 80, 75

10. 8.83Purple 8.33Gold 7.5Gray 5.93Green 5.67Pink

11. 1. Most of the teachers are 32, but some are 28 and 36 years old. 2. The average age of the teachers is 32 and the average of all the differences is between each teacher’s age and the mean is 4 years. 3. The range in age is from 28 to 36 years old.

12. 1. 2 2. 3 3. 4 4. 5

13. 1. 4.5 2. 1.1 3. 6.9 4. 2

14. 1. 1.6 2. 1.9 3. 0 4. 2

15. 1. Almost Complete Overlap 2. Little Overlap 3. No Overlap

16. 12.83Purple 12.33Gold 11.63Gray 9.79Green 9.24Pink

17. 1. 0% 2. 25% 3. 50% 4. 75% 5. 100%

18. 1. 1 times 2. 1.5 times 3. 2.0 times 4. 2.5 times

19. 18.67Gold 17.67Purple 16.99Pink 16.25Gray 14.32Green

20. 89.37Participant 10 134.29Participant 31 172.38Participant 18 208.15Participant 2 209.09Participant 14

21. 29Participant 19 29Participant 4 29Participant 9 29Participant 29 29Participant 3