Question

At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random?
1) You survey customers at the local shopping mall.
2) You survey people chosen randomly from the local phonebook.
3) You survey several of your friends.
4) You survey customers at a popular restaurant.

Answer 1

1) people at the local shopping are all going to share the majority of their interests because they're all at the same place. 2) is the correct answer because it is the most random group of people giving the poll a unbiased sample. 3) most friends are going to be similar in there interests (which is why they are friends) so the poll would be unfair 4) again, these people are not random as they are people with similar interests. 2 or b is the most logical answer Hope I helped!

Answer 2

1) local shopping mall

This is most relevant to spending habits. This would be where people would be spending money on a lot of different things and where their spending habits would show. It'd make the most sense to survey people there.