Answer
Yes. Although the sample collected from two studies are different , both represents the population of all students at the school.
No. They are two random samples by using random sampling methods.
Statistics: The Art and Science of Learning From Data (3rd Edition)
by Agresti, Alan; Franklin, Christine A.
Published by
Pearson
ISBN 10:
0321755944
ISBN 13:
978-0-32175-594-0
Chapter 1 - Section 1.2 - Sample Versus Population - Practicing the Basics - Page 14: 1.15
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