Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - 2.5 Survey Problems - Exercise Set 2.5 - Page 106: 60

Answer

Report was wrong

Work Step by Step

Add the number of students in each region, it will give total number of students as 100.But the number of students mentioned by the registrar was 90. So, the report was wrong which was the reason for not getting selected. Hence, the report submitted was wrong.
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