Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 1 - Section 1.4 - Cross-Section Versus Time-Series Data - Exercises - Page 10: 1.12

Answer

a. time-series data b.time-series data c. cross-section data d. cross-section data

Work Step by Step

The data collected from a and b are of same element but at different points in time, whereas the data collected from c and d are of different elements but at the same point in time.
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