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: 9

Answer

Mean:63 Median: 52 Mode: N/A

Work Step by Step

The mean is the average of the data points: $(75+38+43+120+65+48+52)/7 = 63$ The median is given by the middle data points. Order the numbers from least to greatest, and cross out the greatest and the least number. Repeat this process until you obtain the median, which is 52. The mode is the most commonly-occurring value in the set. Here, each value occurs exactly once, so there is no mode.
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