2. Other Graphs Mean,Median, Mode and Range Statistical Questions Box and Whisker Plots Data Distribution 10 20 30 40 50 40 30 20 10 50 40 30 20 10 50 40 30 20 10 50 40 30 20 10

3. QUESTION: The line plot shows the number of hours Phil spent studying each night during a two-week period. What is the range of data represented in this line plot? ANSWER: 4

4. QUESTION: The following is a set of scores on a math test: 68, 77, 93, 61, 84, 88, 76, 91, 80, 100, 89 What is the median of the scores? ANSWER: 84

5. QUESTION: Susan has four 20-point projects for math class. Susan’s scores on the first 3 projects are shown below: Project 1: 18 Project 2: 15 Project 3: 16 Project 4: ? What does she need to make on Project 4 so that the average for the four projects is 17? ANSWER: 19

6. QUESTION: Trish is making money by walking dogs in her neighborhood. She has set a goal of making an average of $50 per month. So far this year, her monthly totals have been $30, $25, $50, $20 and $65. How much money must she make next month to meet her goal? ANSWER: $110

7. QUESTION: What number could you add to the following set of data to have a mean of 16?12, 16, 18, 10, 14 ANSWER: 26

8. QUESTION: Which is the best example of a statistical question? A-What grade did Scott get on the last science test? B-What were the results for Ms. Gershon’s class on Monday’s science test? C-Did Penny take the science test on Monday? D-How long will it be before Ms. Gershon’s gives another science test? ANSWER: B

9. QUESTION: Which statement most likely resulted from the use of statistics? A-My height is 48 inches. B-25% of the students in my class are shorter than me. C-I think that no one in my class is taller than 54 inches. D-I have grown a lot in the last year. ANSWER: B

10. QUESTION: Which of the following is a statistical question? A-Is the temperature in this room 65 degrees? B-Is the temperature in this room more than 65 degrees? C-Has the temperature in this room been more than 65 degrees this month? D-When do you think that the temperature in this room will be greater than 65 degrees? ANSWER: C

11. QUESTION: Is this a statistical question? What grade did Scott get on the last science test? ANSWER: NO

12. QUESTION: What 2 components make up a good statistical question? ANSWER: Variability and name the population

13. QUESTION: Use the Box and Whisker plot below to find the IQR. ANSWER: 7

14. QUESTION: What percent of temperature were lower than 8.5? ANSWER: 75%

15. QUESTION: What is the 5 number summary for this box-and-whisker plot below? ANSWER: UQ=10 LE=1UE=12Median=8.5LQ=6

16. QUESTION: What does the box and whisker plot look like for the following data? ANSWER:

17. QUESTION: A-The top 25% of the temperatures are between what two values? B-Within what range of temperatures will the middle 50% of the data occur? ANSWER: A: 14 and 20B: 8 and 14

18. QUESTION: Describe the graph. ANSWER: Peak at 124

19. QUESTION: Describe the graph. ANSWER: Symmetrical

20. QUESTION: Describe the graph. ANSWER: Skewed Right with outliers

21. QUESTION: Describe the graph. ANSWER: Skewed Left

22. QUESTION: Describe the graph. ANSWER: Outlier

23. QUESTION: The line plot shows Amy’s scores on all of the quizzes she took this year. If a score of 69 or lower is a failing grade, then how many quizzes did Amy fail? ANSWER: 1 Quiz

24. QUESTION: What percent of the students scored 95 or above? ANSWER: 20%

25. QUESTION: A-How many students throw a discus 35 or more meters? B-What is the most common distance a discus was thrown? ANSWER:A: 7+3+5+4=19B: 25-29

26. QUESTION: Which statement about the data is true based on the frequency table? A-Most of the people were speeding. B-50% of the people were traveling 55 miles per hour or slower. C-255 people were traveling at or below the speed limit. D-25% of the people were travelling at or between 36 and 45 miles per hour. ANSWER: C

27. QUESTION: A. What is the size of the intervals? B. How many students scored 60 or below? ANSWER: A: 10B: 3+1+1+3+2=10