Answer
stratified
Work Step by Step
Recall, a stratified sample involves dividing a population into groups and then choosing members from that population. Since this is the process used for this example, the answer is stratified.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 12 - Data Analysis and Probability - 12-5 Samples and Surveys - Practice and Problem-Solving Exercises - Page 757: 15
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