The death penalty. A press release by the Gallup News Service says that, based on a poll conducted October 4–7, 2007, it found that 69% of Americans respond “Yes” when asked this question: “Are you in favor of the death penalty for a person convicted of murder?” Toward the end of the article, you read: “These results are based on telephone interviews with a randomly selected national sample of 1010 adults, 18 years and older.” What variable did this poll measure? What population do you think Gallup wants information about? What was the sample?

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