Name:
Unit 2 Assessment – Inferences
Find the mean, median, mode, range, Q1, Q3, MAD, minimum, maximum and draw a Box-and-whiskers plot.
Round to the nearest tenth.
Temperatures (˚F), (both high and low) over the next few days in Denver, Colorado.
66˚, 45˚,73˚,46˚,77˚,48˚,79˚,48˚, 73˚, and 45˚.
1. Mean ___________
2. Median __________
3. Mode ___________
4. Range ___________
5. Q1 ______________
6. Q3 ______________
7. MAD ____________
8. Minimum ________
9. Maximum ________
10. Box and Whiskers
Test averages in seventh grade math class: 98, 65, 81, 79, 91, 77 and 52.
11. Mean ___________
12. Median __________
13. Mode ___________
14. Range ___________
15. Q1 ______________
16. Q3 ______________
17. MAD ____________
18. Minimum ________
19. Maximum ________
20. Box and Whiskers
Tomato Plants: The heights (in inches) of eight tomato plants are
36, 45, 52, 40, 38, 41, 50 and 48.
21. Mean ___________
22. Median __________
23. Mode ___________
24. Range ___________
25. Q1 ______________
26. Q3 ______________
27. MAD ____________
28. Minimum ________
29. Maximum ________
30. Box and Whiskers
31. The school newspaper is conducting a survey on the students’ favorite subject. Tell whether each
sampling method is biased or not. Explain your answer.
a. The newspaper surveys eighth grade students in a math class.
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b. The newspaper surveys every twentieth student entering school.
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