Answer
a) Yes
b) $35.4$%
Work Step by Step
a) Yes, we can add that 31% of deaths are caused by heart and respiratory disease.
b) We find:
$100-(25.4 + 23.2 + 5.6 + 5.3+ 5.1) =35.4$%
Stats Modeling the World, 4th Edition
by Bock, David E.; Velleman, Paul F.; De Veaux, Richard D.
Published by
Pearson
ISBN 10:
0133151549
ISBN 13:
978-0-13315-154-1
Chapter 2 - Displaying and Describing Categorical Data - Exercises - Page 36: 13
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