Name ____________________________
Unit 8 Pre-Assessment
Answer the questions below.
1. Find the mean, median, and mode for the data set below.
11, 13, 14, 15, 16, 22, 24, 25, 30, 32
2. Determine the range for the set of data: 47, 56, 51, 45, and 41.
3. Should mean, median, mode, or range be determined to best analyze the following set of data?
Student: | Number of minutes: |
1 | 29 |
2 | 32 |
3 | 40 |
4 | 33 |
5 | 38 |
The box-and-whisker plot below was created after recording amount of time it took for several runners to finish a 5K race. Use the box-and-whisker plot to answer the questions below.
4. a. What are the fastest and slowest finishing times?
b. Where did 50% of the runners finish?
Use the circle graph to answer the questions below.
5. a. Which animal received the most votes for mascot?
b. Which two animals make up approximately half of the votes?
6. Twenty people were asked to state the number of hours they sleep each night. The results of the survey are listed below. Create a frequency table to display the data.
7, 8, 6, 9, 10, 12, 5, 7, 8, 9, 10, 11, 12, 7, 6, 7, 8, 10, 11, 9
7. Use the data in question six to create a histogram of the information.
Use the histogram below to answer the following question.
8. What was the most common number of hours that people spent on the computer?
Use the information on the graph to answer the questions below.
9. The graph shows that between 1950 and 2000, the population increased approximately, how much?
10. The data values listed below depict two periods of students’ scores on a history exam (out of 100). The teacher grading the exams would like to create a display that will compare the two sets of data and would allow him to eventually determine the overall mean, median, mode, and range of the test scores. What is the most appropriate display for this set of data?
