measures of center quiz (A VERSION)

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?

A. 79%

The dot plot shows the number of text messages Mr. Garcia sent each day so far this month. Which statement best discribes the shape of the graph?

A. The graph is skewed left

A mini-golf course is determining the par score for each of its holes. The dot plot shows the number of strokes required to place a ball in the ninth hole for a sample of 31 players. Which measure of center is best to use to determine the expected number of strokes required for the ninth hole?

A. The mean is the best choice because the data is nearly symmetrical.

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. Which statement is true about the mean and median of the numbers of red cubes in the bags?

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

The graph shows the ages of different concertgoers who have backstage passes. Which statement is true about the graph?

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

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

C. 10-12 - 4 14-16 - 8 18-20 - 6 22-24 - 2

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?

C. 20

The table shows the heights, in inches, of players on a girls' basketball team. What is the mean height, rounded to the nearest whole number if necessary?

C. 69

Quinn mailed four postcards that each cost $0.25, five letters that each cost $0.44, two large envelopes that each cost $0.80, and one small package for $5.10. Which cost on the list of mailing fees on Quinn's receipt would skew the mean?

D. the cost of the small package

Brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. After taking the sixth quiz, Brooke's mean score increased. Which could be Brooke's sixth quiz score? Select three options.

B. 90 D. 86 E. 92