A political campaign randomly surveyed 250 registered voters in a district to gauge support for Candidate X. The survey results showed that 70 voters expressed support for Candidate X. If there are 15,000 registered voters in the district, which of the following is the most appropriate conclusion?
Exactly 4,200 registered voters in the district support Candidate X.
The best estimate for the number of registered voters in the district who support Candidate X is 3,500.
The best estimate for the number of registered voters in the district who support Candidate X is 4,200.
The survey results are unreliable because the sample size is too small.
