8.0k views
4 votes
Tia surveyed every third house in the locality to determine the number of people who own pets.

a. unbiased, simple random sample

b. biased, voluntary response sample

c. unbiased, systematic random sample

d. biased, convenience sample

2 Answers

0 votes
D the environment is controlled
User Dimme
by
5.9k points
3 votes
I think it is c, I could be wrong though
User Tropin Alexey
by
6.2k points