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 874: 37

Answer

13

Work Step by Step

Of the twenty trials, Raymond scored lower than 80 (1, 2, 3) in thirteen trials.
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