Answer
(b) There were 150 teens from schools that forbid cell phones among the respondents.
Work Step by Step
The sum of the forbid column is 150.
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: 6.9
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