Data Sets

Which interval has 4 students?

• 56-59

• 60-63

• 60-67

• 48-51

Which best describes the spread of the data?

• $40 - $49

• $20 - $49

• $30 - $69

• $0 - $69

The double dot plots show the average wait times, in minutes, for two popular rides at an amusement park. Which ride typically has a longer wait time?

• No inference can be made from the graph.

• Topsy Turvy

• The wait times are the same for both rides.

• Rocket Blast

How many students are between 48 and 51 inches tall?

• 14

• 8

• 2

• 0

The dot plots show the gas mileage, in miles per gallon, for several cars and SUV's. Which type of vehicle has a larger spread?

• cars

• SUVs

What numbers make up the cluster?

• 16-17

• 15-18

• 14-18

• 19-20

Study the graph and determine one measure of center and one measure of variability that would best describe the data. (hint: are there outliers?)

• Range

• Median

• Mean

• IQR

For this data set, the​ (a)   is the best measure of center and the​ (b)   is the better measure of variation.

• median

• IQR

• range

• mean

• mode

Select the (2) measures of CENTER.

• Mean

• Median

• IQR

• Range

Which of the following are true about the IQR? Check all that apply.

• IQR = Q3 - Q1

• IQR = Q1 - Q3

• The IQR is the middle 50% of a distribution

• IQR stands for interquartile range

• The IQR is the width of the box in a boxplot