Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - 12-3 Measures of Central Tendency and Dispersion - Practice and Problem-Solving Exercises: 14

Answer

$x=39.1$

Work Step by Step

To find the mean, we add up all of the values and divide by the total number of values. Mean: $\frac{31.7+42.8+26.4+x}{4} = 35$ $31.7+42.8+26.4+x=140$ $x=39.1$
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