Answer
31.25%
83.33%
Work Step by Step
25 of 80 established authors are successful. That is $25/80*100=31.25$%
25 of 30 successful authors are established. That is $25/30*100=83.33$%
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 7.1 - Sample Spaces and Events - Exercises - Page 458: 55
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