Question

Compare the box-and-whisker plots below that shows the fuel efficiencies for cars vs trucks. On average, do cars or trucks have better fuel efficiency (miles per gallon)?

The number line has fuel efficiency values from 10 to 54 miles per gallon in increments of 2.

For cars the approximate values are as follows:

Minimum: 15
First Quartile: 18
Median: 20
Third Quartile: 22
Maximum: 50

For trucks the approximate values are as follows:

Minimum: 12
First Quartile: 14
Median: 15
Third Quartile: 16
Maximum: 21

Answer 1

Based on the box-and-whisker plots provided, we can see that cars have higher fuel efficiency on average compared to trucks. This can be determined by looking at the median values for both cars and trucks - cars have a median fuel efficiency of 20 miles per gallon, while trucks have a median of 15 miles per gallon. Additionally, the first and third quartile values for cars are also higher than those for trucks, indicating that a larger proportion of cars have better fuel efficiency compared to trucks. Therefore, on average, cars have better fuel efficiency (miles per gallon) compared to trucks.