Question

pollsters take a survey of people at a ball game to collect and analyze data about favorite leisure activities of star citys residents. would this study be biased? why or why not?
no, it is not biased. the sample of people at the ball park is representative of star citys residents.
no, it is not biased. all people at the ball park will respond to the survey.
yes, it is biased. not all people at the ball park will respond to the survey.
yes, it is biased. the sample of people at the ball park is not representative of star citys residents.

Explanation:

A representative sample should reflect the entire population. People at a ball - game are more likely to be interested in sports - related leisure activities compared to the general population of Star City residents. So, this sample is not representative.

Answer:

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