Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 1 - Introduction to Statistics - Chapter Quiz - Page 32: 5

Answer

a) Observational b) Experimental

Work Step by Step

a) This is observational because it is simply observing, influences or treatment is not involved. b) This is an experiment because there is a treatment involved.
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