The boxplots below display the distribution of maximum speed by type of roller coaster for a data set of 145 roller coasters in the United States.
-The boxplots show that 25% of wooden roller coasters in the sample travel faster than
A) 50 mph.
B) 54 mph.
C) 60 mph
D) 65 mph.

Question

The boxplots below display the distribution of maximum speed by type of roller coaster for a data set of 145 roller coasters in the United States. 
-The boxplots show that 25% of wooden roller coasters in the sample travel faster than
A) 50 mph. 
B) 54 mph. 
C) 60 mph 
D) 65 mph.

Quizplus · Accepted Answer

The third quartile (Q3) in a boxplot represents the 75th percentile, meaning 25% of the data is above this value. If the boxplot shows Q3 at 60 mph, then 25% of the wooden roller coasters travel faster than 60 mph.

The Boxplots Below Display the Distribution of Maximum Speed by Type