Answer
4/5
Work Step by Step
When considering two events, it is necessary to subtract the union of the two sets from the answer. Thus, they should have subtracted one fifth, for one card both has a letter on it and is yellow.
This gives:
4/5
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 12 - Data Analysis and Probability - 12-8 Probability of Compound Events - Lesson Check - Page 780: 7
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