Algebra 1: Common Core (15th Edition)

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

Common Core End-of-Course Assessment - Page 795: 26



Work Step by Step

The mean is the same as the average of a data set. The average is equal to the sum of all of the numbers in the data set divided by the total number of numbers (8). Thus, we know that each number will be 8 larger, so the sum of the numbers increases by 64. We divide this by the number of numbers present, 8, to get that the mean increases by 8.
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