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Chapter 12: Q7. (page 797)
Evaluate each expression.
120
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Identify each sample, and determine a population from which it was selected. Then classify the type of data collection used.
A record company wants to test five designs for an album cover. They randomly invite ten teens from a local high school to view the album covers.
Identify each sample, and suggest a population from which it was selected. Then classify the sample as simple, stratified, or systematic. Explain your reasoning.
A music store gives every fiftieth customer a free CD by a local artist.
Identify the sample, and suggest a population from which it was selected. Then classify the sample as simple, stratified, or systematic. Explain your reasoning.
A nostalgia television network wants to conduct a cartoon marathon. To choose the episodes, they mail a questionnaire to people selected at random throughout the country.
Write each fraction as a percent. Round to the nearest tenth.
Identify each sample, and determine a population from which it was selected. Then classify the type of data collection used.
A travel agency asks each of its customers for the past two years about their favorite and least favorite destinations.
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