The Basic Practice of Statistics 7th Edition

by Moore, David S.; Notz, William I.; Fligner, Michael A.

Published by W. H. Freeman

ISBN 10: 146414253X

ISBN 13: 978-1-46414-253-6

Chapter 6 - Two-Way Tables - Check Your Skills - Page 174: 6.10

Answer

$\approx24.5\%$

Work Step by Step

The total number of individuals is $612$ and the total number of individuals with phones forbidden is $150$. Thus the required percentage is $\frac{150}{612}\approx24.5\%$

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