Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - Chapter Review - 12-5 Samples and Surveys - Page 777: 21

Answer

Stratified

Work Step by Step

A population was separated into smaller groups and people within a group was randomly surveyed.The stratified method gives a good sample.
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