Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking: 3


A voluntary response sample is one in which the respondents themselves decide whether or not to be included. One should avoid these types of samples because they can be biased due to characteristics of the participants who decide to respond.

Work Step by Step

A sample that is not randomized cannot be used to make generalizations about a larger population due to biases.
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