These dot plots show the ages (in years) for a sample of two types of fish.
sharks
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
koi
+

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
age (in years)
what are the differences between the centers and spreads of these
distributions?
select two choices: one for the centers and one for the spreads.