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Question
the city of raleigh has 9200 registered voters. there are two candidates for city council in an upcoming election: brown and feliz. the day before the election, a telephone poll of 250 randomly selected registered voters was conducted. 146 said theyd vote for brown, 98 said theyd vote for feliz, and 6 were undecided. describe the sample for this survey. all citizens of raleigh all registered voters in raleigh all registered voters with telephones in raleigh the 250 voters surveyed the 146 voters who said theyd vote for brown none of the above question help: video
In a survey, the sample is the specific group that is actually studied. Here, the survey was a telephone poll of 250 randomly selected registered voters. The other options are incorrect: "All citizens of Raleigh" is too broad (not all are registered voters), "All registered voters in Raleigh" is the population (not the sample), "All registered voters with telephones in Raleigh" is a subset of the population but not the specific group surveyed, "The 146 voters who said they'd vote for Brown" is a part of the sample, not the entire sample. So the sample is the 250 voters surveyed.
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The 250 voters surveyed