Answer
Grouping data in the form of a frequency table shows how the frequencies of that data are distributed over various categories, this enables us to summarize the entire data more efficiently and into simpler groups.
Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 2 - Section 2.1 - Organizing and Graphing Qualitative Data - Exercises - Page 42: 2.1
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