Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 3 - Logic - 3.3 Truth Tables for Negation, Conjunction and Disjunction - Exercise Set 3.3 - Page 149: 77

Answer

See below.

Work Step by Step

The symbols mean that: not p or r, thus a statement is: The percent body fat in women does not peak at age 55 or men have more than 24% body fat at age 25. This is false because p is true but r is false, thus not p or r is false.
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