Measures of Center

Question 1

Tristan records the number of customers who visit the store each hour on a Saturday. His data representing the first seven hours are 15, 23, 12, 28, 20, 18, and 23. How many customers visited the store during the eighth hour if the median number of customers per hour did not change?

Revolt · Accepted Answer

20

Question 2

There are 8 sophomores on the academic team. At the last competition, they each took the math test. Their scores were 82%, 92%, 76%, 72%, 92%, 74%, 80%, and 78%. What was the median math score of the sophomores?

Revolt · Accepted Answer

79%

Question 3

The graph shows the number of pages in each chapter of a book that Josh is reading.

Revolt · Accepted Answer

The outlier of 2 decreases the mean page count.

Question 4

The graph shows the ages of different concertgoers who have backstage passes.

Revolt · Accepted Answer

The two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age.

Question 5

Which could be Brooke’s sixth quiz score? Select three options.

Revolt · Accepted Answer

90; 86; 92

Question 6

The table shows the heights, in inches, of players on a girls’ basketball team.

Revolt · Accepted Answer

69

Question 7

Ms. Monroe mixes 200 cubes of 4 different colors for a project. She then uses a scoop to place 20 cubes into each of 10 paper bags. Each group records the number of cubes of each color in a bag. The number of red cubes for the 10 groups are recorded in the graph.

Revolt · Accepted Answer

The mean number of red cubes is more than the median number of red cubes.

Question 8

Colin surveyed 12 teachers at his school to determine how much each person budgets for lunch. He recorded his results in the table.What does the relationship between the mean and median reveal about the shape of the data?

Revolt · Accepted Answer

The mean is equal to the median, so the data is symmetrical.

Question 9

The dot plot shows the number of text messages Mr. Garcia sent each day so far this month.

Revolt · Accepted Answer

The graph is skewed left.

Question 10

The dot plot represents an order of varying shirt sizes.Which histogram represents the same data?

Revolt · Accepted Answer

A graph shows shirt size labeled 2 to 3 thru 22 to 24 on the horizontal axis and number of shirts on the vertical axis. 0 shirts are size 2 to 3. 0 shirts are size 6 to 8. 4 shirts are size 10 to 12. 8 shirts are size 14 to 16. 6 shirts are size 18 to 20. 2 shirts are size 22 to 24.

Measures of Center Answers

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