2. Carol wants to find how many people in her town own a dog as a pet. She decides to survey
individuals walking out of the local pet store. She surveys every person who walks out and asks
them if they own a dog? Is this a random sample? Justify your response.

This is not a random sample since she is outside of a pet store and the probability of people owning a dog coming out of that store is very very high. If she went around the neighborhood and knocked on people’s door and asked if they had a dog or not would be random sample.