Question

The city council wants to find out if city residents would be willing to pay higher taxes for improvements to the city's parks.

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.

Answer 1

randomly survey the entire city population, the others limit to certain groups of people, or maybe non-city residents, just visiting the park

Answer 2

So is it C @DanJS?

Answer 3

you want the whole city residents as a sample pool to ask

parent's and children at the park is not for sure the entire city residents

Answer 4

if they are at the park, they are probably biased to pay more taxes and make it better

Answer 5

unbiased would be to randomly select from the entire city population, some may go to the park, some may not

Answer 6

so is it C?

Answer 7

or?

Answer 8

sample from entire city population ...

A. The council randomly surveys people from a list of city residents.