Answer
52.2%
Work Step by Step
P(no surveys from one phone call) = .85
$.85*.85*.85*.85$
$.7225 * .7225$
$.522$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 12 - Data Analysis and Probability - 12-8 Probability of Compound Events - Practice and Problem-Solving Exercises - Page 769: 42
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