Measures of Center and Comparing

Which statement is true?

• The mode is misleading because it is in the center of the data points.

• The mean is misleading because the outlier skews the mean down.

• The median is misleading because it is in the center of the data.

• The range is misleading because it is too large.

Which measure of center most accurately describes the data?

• Mean

• Median

• Mode

• Range

The double dot plot shows the gas mileage, in miles per gallon, for several cars and SUVs.

• The cars have a greater gas mileage with a greater variation.

• The cars have a greater gas mileage with a less variation.

• SUVs have less gas mileage with greater variation.

• SUVs are centered around a greater median.

The double dot plot shows Kareem's and Martin's race times for a three-mile race.

• Martin typically runs a faster race.

• Kareem typically runs a faster race.

• Martin's race times are more consistent.

• Kareem's race times are less consistent.

Find the median number of fires Jack started in the last 8 days.

22, 53, 25, 27, 16, 65, 42, 70

• 34.5

• 42

• 27

• 40.5

Find the mean of Violet's test scores.

95, 90, 100, 90, 85, 95, 75

• 105

• 92

• 90

• 95

The data shows the number of goals Dash has scored. Find the mode(s).

4, 4, 2, 3, 1, 0, 7, 2, 5, 6

• 4

• 2, 4, and 6

• 6

• 4 and 2

The box-and-whisker plots show the test scores of two different classes. Which class had a greater range of test scores?

• There is no range.

• 2nd period

• the ranges are the same

• 1st period

Every Friday, the French Club sells bagels and the Spanish Club sells doughnuts to raise money for charity. The double dot plot shows how many items the clubs sell over several weeks. Which club typically sells more items?

• French Club

• No inference can be made from the graph.

• Spanish Club

• Both clubs sell the same number of items.

Theo recorded the means and mean absolute deviations of his language arts and Biology scores. He found the difference in the means of the scores of the two subjects. What is the approximate ratio of the difference in the means to each of the mean absolute deviations?

• 2

• 5

• 18

• 28