Answer
r = -1
Work Step by Step
As one variable increases the other decreases; hence we can establish that there is a perfect negative relationship between the variables and the correlation coefficient "r" is -1.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 4 - Section 4.1 - Assess Your Understanding - Vocabulary and Skill Building - Page 199: 5
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