Answer
(c) 0.25
Work Step by Step
The sample space: 4 doors.
Event E: the selected door doubles her money. This event has only one outcome. So:
$P(the~selected~door~doubles~her~money)=\frac{1}{4}=0.25$
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 3 - Probability - Section 3.1 Basic Concepts of Probability and Counting - Exercises - Page 140: 13
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