Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 11 Data Analysis and Statistics - Standardized Test Practice - Multiple Choice - Page 790: 6

Answer

Answer B

Work Step by Step

The mean of $n$ numbers is the sum of the numbers divided by $n$. The median of $n$ is the middle number of the numbers when they are in order (and the mean of the middle $2$ numbers if $n$ is even). The mode of $n$ numbers is the number or numbers that appear(s) most frequently. Hence here the mean is: $\frac{384+480+576+640+768}{5}=569.6$. The median is the mean of the middle items in the sequence $384,480,576,640,768$, which is: $576$. We can see that the median is greater than the mean. The range is the difference between the largest and the smallest data value. The range is: $768-384=384$ Hence, the correct answer is B.
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