The student life leadership committee at a university recently conducted a survey to help make a decision regarding a petition for allowing pets in dorm rooms. The table shows the number of students in each graduating class who have a pet at home.
Dog
Cat
Other
Freshmen
56
38
25
48
50
20
Sophomores
Juniors
Seniors
62
15
21
31
24
18
The committee polled 150 freshmen, 180 sophomores, 120 juniors, and 110 seniors.
the percentage
Given that they have a pet, the percentage of freshmen who have a pet that is not a dog is
of freshmen who have a dog.
Given that they have a pet, the percentage of juniors who have a cat is
have a pet that is neither a cat nor a dog.
the percentage of sophomores who
The percentage of students who have a pet and are juniors is
seniors.
the percentage of students surveyed who ar