Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 13 - Probability - Chapter Review - Page 871: 6

Answer

.9

Work Step by Step

The probability is given by the number of favorable outcomes divided by the total number of possible outcomes. When we add up the numbers provided, we see that there is a total of 30 outcomes. 27 of the teachers are not music teachers, so we find: 27/30=.9
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