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.
Algebra 1
by Hall, Prentice
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
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