Question

1. people were asked whether they owned a pet and if they visited the zoo this past summer.

own a pet
visit the zoo
yes
no
yes
50
30
no
20
40
which of the following statements are true?
circle all that apply.
a. 50 people who own a pet visited the zoo.
b. 30 people who do not own a pet visited the zoo.
c. 70 people visited the zoo.
d. 140 people were surveyed.
e. there are more people that own a pet than people who visited the zoo.

Explanation:

Step1: Analyze Option A

The cell where "Visit the Zoo - Yes" and "Own a Pet - Yes" intersect is 50, so 50 people who own a pet visited the zoo. So A is true.

Step2: Analyze Option B

The cell where "Visit the Zoo - Yes" and "Own a Pet - No" intersect is 30, so 30 people who do not own a pet visited the zoo. So B is true.

Step3: Analyze Option C

To find the number of people who visited the zoo, add the two cells in the "Visit the Zoo - Yes" row: \(50 + 30 = 80\), not 70. So C is false.

Step4: Analyze Option D

To find the total number of people surveyed, add all cells: \(50 + 30 + 20 + 40 = 140\). So D is true.

Step5: Analyze Option E

Number of people who own a pet: \(50 + 20 = 70\). Number of people who visited the zoo: \(50 + 30 = 80\). \(70 < 80\), so E is false.

Answer:

A. 50 people who own a pet visited the zoo,
B. 30 people who do not own a pet visited the zoo,
D. 140 people were surveyed