Comparative Inferences with Box Plots

Using the box plot above, how would I find the Interquartile Range (IQR)?

• 50-30

• 60-30

• 60+30

• 80-20

Using the box plot above, what is the median amount of stuffed animals owned by students?

• 50

• 30

• 60

• 20

Students recorded the amount of minutes they spend watching TV. Using the box plot shown above, what is the first quartile?

• 30

• 24

• 60

• 78

Mr. Fisk, Ms. Martinez, and Mrs. Smeltzer, gathered every 6th grade math score on the test they took, which is shown in the box plot above. What is the median score the 6th grade students received?

• 64

• 70

• 84

• 72

Which box and whisker plot has the highest median?

• Top plot

• Bottom plot

50% of the Car Hops went to 11 or fewer car shows.  True or False?

• True

• False

75% of the Cruisers went to more than 13 car shows.  True or False?

• True

• False

What percentage of the data is between 90 and 140?

• 25 %

• 50%

• 75%

• 100%

What is the interquartile range?

• 4

• 6

• 2

• 8

Group A and Group B were randomly sampled from the same population. Which statements below are true? Select all that apply.

• Group A has a greater median than Group B

• Group A has a greater range than Group B

• Group A has greater variability than Group B

• Group B has a greater median than Group A

• You cannot tell which group has the greater median based on the picture.