Question

problem: take a survey of people at a ball game to collect and analyze data about favorite leisure activities of star city’s residents. would this study be biased? why or why not?

1. no, it is not biased. the sample of people at the ball park is representative of star city’s residents.
2. no, it is not biased. all people at the ball park will respond to the survey.
3. yes, it is biased. not all people at the ball park will respond to the survey.
4. yes, it is biased. the sample of people at the ball park is not representative of star city’s residents.

Explanation:

To determine if the survey is biased, we analyze the sample. A biased sample doesn't represent the entire population. People at a ball game likely have a preference for sports/ball - related leisure, so they don't represent all Star City residents. Option A is wrong as the ball park (game) sample isn't representative. Option B is wrong because response rate doesn't define bias; bias is about sample representation. Option C is wrong as non - response isn't the issue here; the sample itself is unrepresentative. Option D correctly states the sample at the ball game isn't representative of all residents, so the study is biased.

Answer:

D. Yes, it is biased. The sample of people at the ball park is not representative of Star City’s residents.