Practice Quiz

CLEP American Government Exam Prep

Category - CLEP US Government

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Which of the following is the most important feature of getting an accurate opinion poll?
  1. A large sample
  2. A random sample
  3. Only asking those with demonstrated political knowledge
  4. Only asking those who have graduated from college
  5. Only asking those who voted in the last primary election
Explanation
Answer: B - The most important feature of getting an accurate opinion poll is using a random sample. A random sample is a sample in which any person has an equal opportunity of being contacted by the pollster. This is vitally important, because without it a poll will become skewed. Let’s say you do a poll to see who is ahead in an election. If the only people you poll are Republicans, then it will look like the Republican is ahead, even if the Democrat is actually winning.
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