Comparing distributions

The Baltimore Ravens won the American football championship in

2013

. In the same season, the Kansas City Chiefs had a record of

2

wins and

14

losses.

The dot plots below show the

40

-yard dash times (in seconds) of the defensive backs on each team's roster. Defensive backs mainly defend against passes, and the

40

-yard dash is the main measure of speed used in American football.

Which pieces of information can be gathered from these dot plots? (Remember that lower $40$ ‍-yard dash times are faster.)

7th grade