Unit 7 Review!!!

A student needs to select a statistical question to research for a project. Which of the following questions should the student select? Choose 3.

• How old were the US presidents when they took office?

• How long does each student spend doing homework?

• If 3 cups of sugar are required for 2 batches of cookies, how many cups are needed for 3 batches of cookies?

• How many stories do houses on Fulton Street have?

• What are the names of all the students in this class?

The daily temperatures for the past week are shown in the chart. What was the mode temperature for the week?

• 31

• 32

• 33

• 36

• 37

Which of the following data sets has a range of 15? Select 2 that apply.

• 1, 5, 11, 12, 16

• 7, 8, 10, 14, 15

• 15, 15, 15, 15, 15, 15

• 16, 17, 18, 26, 27, 28

• 21, 30, 31, 32, 32, 36

Colin asked some of his classmates how many minutes they spent doing homework last night. He created this dot plot with his results. What is the median of the data Colin collected?

• 5

• 10

• 15

• 20

• 25

Mr. Crosson recorded the social studies test scores of his 6th grade class. The scores are shown below:

55, 65, 70, 70, 78, 81, 82, 85, 86, 88, 90, 93, 99

Which of the following statements is true?

• Mr. Crosson recorded 12 scores

• Mr. Crosson recorded 9 scores that were higher than 75

• Mr. Crosson recorded 3 scores between 91 and 100

• Mr. Crosson recorded 2 scores that were less than 65

Mrs. Adams’ class earned the following scores on the last test: 52, 67, 63, 69, 83, 82, 87, 83, 91, 96. Which of the following correctly presents the data in a stem-and-leaf plot?

• 
• 
• 
• 

Lisa was looking at the address numbers of her friends that lived on her street. The numbers were 412, 414, 417, 418, 420, 422, and 437. What is the mean of the address numbers?

• 2940

• 420

• 1470

• 418

What is another word for mean?

• The middle

• The most frequent

• The total

• The average

A camp counselor records the ages of students attending a summer camp. The ages of students are 8, 8, 9, 10, 10, 11, 11, 12, and 13. Which of the following histograms correctly display the data? Select all that apply.

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• 
• 

Based on the graph, which of the following conclusions is valid?

• The Germany won 10 more medals than Great Britain

• Germany won about twice as many medals as Great Britain

• Great Britain only won one medal

• The United States twice as many medals as Great Britain