## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 12 - Data Analysis and Probability - 12-5 Samples and Surveys - Practice and Problem-Solving Exercises - Page 757: 24

#### Answer

I would use a random sample.

#### Work Step by Step

The systematic method may create biased results. For example, if I asked every 10th person who walked into the cafeteria, the results may be biased. Perhaps, people who listen to a certain type of music are less likely to eat lunch in the cafeteria. A stratified method would work, but it may be difficult. After all, going into each classroom and randomly selecting two students would a) take a long time and b) be disruptive. When writing a survey question, there are a variety of important considerations. My main advice would be to make sure that the question does not in itself suggest a certain answer.

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