Answer:
The survey is not useful because of the bias or sentimental views of readers response.
Step-by-step explanation:
This survey gives a good example of voluntary bias response from viewers, which often represents negative opinions or views.
The readers or people who responded were most likely parents who were not happy about their situation, and so there is very small chance that the 10,000 readers or respondents were representing the populace . taking a sample or Knowing more about her readers, would not have changed the the views or opinions of people.