Some people have been complaining that the children's playground at a municipal park is too small and is in need of repair. Managers of the park decide to survey city residents to see if they beleve the playground should be rebuilt. They hand out questionnaires to parents who bring children to the park. Describe some possible biases in this sample.
A) The sampling scheme suffers from undercoverage, because only people who come to the park to use the playground will respond. Parents who are dissatisfied with the playground will not come
B) The sampling scheme suffers from voluntary response bias. Only parents who choose to visit the park and feel strongly about the issue are likely to respond
C)The sampling scheme suffers rom response bias. Parents who come to the park to use the playground are more likely to be sali Sed with the playground
D) The sampling scheme uses a convenience sample. Only parents who are easy for the park managers to contact are in the sample