Elementary Statistics: Picturing the World (6th Edition)

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

Chapter 1 - Introduction to Statistics - Section 1.3 Data Collection and Experimental Design - Exercises - Page 25: 24

Answer

Stratified sampling technique is used in this survey, as people are classified based on rural and urban and further on the basis of age

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