The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 1-46414-253-X
ISBN 13: 978-1-46414-253-6

Chapter 2 - Describing Distributions with Numbers - Chapter 2 Exercises - Page 70: 2.43a


The negative values mean the patients gained weight.

Work Step by Step

If a patient started at 150 kilograms and ended at 160 kilograms, then they would have lost a negative 10 kilograms. Since people cannot lose negative weights, this means they gained weight.
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.