Answer
$.4$
Work Step by Step
$E=${1,2,3}
$P(E')=P(${4,5}$)$
The relative frequency for the outcome 5 is $.3$ because the relative frequencies must add up to 1.
$P(${4,5}$)=P(4)+P(5)=.1+.3=.4$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 7 - Section 7.2 - Relative Frequency - Exercises - Page 464: 19b
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