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 - Page 730: 15



Work Step by Step

The line plot gives the following data: 12, 13, 13, 14, 14, 14, 15, 15, 15 To find the mean, we add up all of the values and divide by the total number of values. Mean: $\frac{12+13+13+14+14+14+15+15+15+x}{10} = 14$ $12+13+13+14+14+14+15+15+15+x=140$ $x=15$
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