Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 1 - Introduction to Statistics - Section 1.3 Data Collection and Experimental Design - Exercises - Page 26: 29

Answer

Stratified sampling is used. Bias may be introduced as some sub plots may have more plants than others.

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