Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 1 - Section 1.1 - Assess Your Understanding - Vocabulary and Skill Building - Page 11: 21

Answer

Qualitative.

Work Step by Step

Phone number is a qualitative variable. Notice that, even though they are numeric, adding or subtracting phone numbers does not provide meaningful results.
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