Answer
Stratified
Work Step by Step
The most appropriate would be stratified because we need representatives from all grades. An example would be giving genres of music and asking which type of music do they enjoy.
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 - 12-5 Samples and Surveys - Practice and Problem-Solving Exercises - Page 745: 24
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