Brand Y Cola sponsors a survey of 15,559 residents of Texas to determine which brand of cola they prefer. Forty percent say they prefer Brand X, and 60 percent say they prefer Brand Y. Which of the following is the sample used for the survey ?

The sample is the group of people who were actually surveyed. Here, the survey asked 15,559 Texas residents about their cola preference, so the sample is the 15,559 residents. All residents of Texas are the broader population, while the percentages describe the survey results.

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