The two-way table shows the number of students in a school who have rabbits and/or birds as pets:

Have Rabbits Do Not Have Rabbits Total
Have Birds 18 22 40
Do Not Have Birds 25 35 60
Total 43 57 100

How many more students have rabbits than birds? (4 points)

3

7

22

25

25 students have rabbits (18+7) and 40 students have birds (18+22). So, there are 25-40 = -15 more students with birds than with rabbits. Alternatively, it can be said that there are 15 more students with rabbits than with birds.