Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 12 - Data Analysis and Probability - 12-3 Measures of Central Tendency and Dispersion - Practice and Problem-Solving Exercises: 11

Answer

5.9

Work Step by Step

We use the standard formula for average, and we let x be the unknown value. $(3.8+4.2+5.3+x)/4 =4.8\\ (3.8+4.2+5.3+x) = 19.2\\ x = 5.9$
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