Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 1 - Section 1.5 - Assess Your Understanding - Vocabulary and Skill Building - Page 42: 6


(a) Sampling bias. (b) He should use stratified sampling.

Work Step by Step

(a) This is not a representative sample: people who live in the same location have about the same income. (b) This way, he can randomly select individuals from the different locations (strata) of the village.
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