Elementary Statistics (12th Edition)

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

Chapter 4 - Probability - 4-3 Addition Rule - Basic Skills and Concepts - Page 153: 11



Work Step by Step

Two events are disjoint if they cannot happen at the same time. False negative means that someone is a drug user, but got a negative result. Therefore it is not possible to get false negative if not using drugs. Therefore, these events are disjoint.
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.