Which sampling procedure is most likely to give an unbiased report of the residents' opinions?
A. The council randomly surveys people from a list of city residents.
B. The council surveys a random selection of visitors to the city's parks.
C. The council does a random survey of parents of children playing in the city's parks.
D. The council randomly surveys employees of the city's parks department.
WILL MEDAL

Question

Which sampling procedure is most likely to give an unbiased report of the residents' opinions?
  A. The council randomly surveys people from a list of city residents. 
  B. The council surveys a random selection of visitors to the city's parks. 
  C. The council does a random survey of parents of children playing in the city's parks. 
  D.  The council randomly surveys employees of the city's parks department.  
WILL MEDAL

hysusonic · Answer

do you know the difference between biased and unbiased?

anonymous · Answer

Its kinda hard to explain, but I'll give an example: 

 Bias: Asking a football player "What is more fun: football or tennis?" 

 Unbiased would be if you asked two people who are unrelated to the subject of the question being asked.