Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 2 - Summarizing and Graphing Data - 2-4 Graphs That Enlighten and Graphs That Deceive - Basic Skills and Concepts - Page 70: 4


Check details.

Work Step by Step

When we have only a few data it is a simple random sample, but if we have a much larger sample then it is a voluntary response sample. In this case we have a lot more data, therefore it will look continuous, the distribution will be normal and we can draw conclusions from it.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.