Answer
$6.5-7.5$ feet
Work Step by Step
The boundary of a number is defined as a class in which a data value would be placed before the data value was rounded. Therefore, for $7$ feet, the boundary would be $6.5-7.5$ feet.
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 1 - The Nature of Probability and Statistics - 1-2 Variables and Types of Data - Exercises - Page 11: 17
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