Algebra 1

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

Chapter 12 - Data Analysis and Probability - 12-4 Box-and-Whisker Plots - Practice and Problem-Solving Exercises - Page 738: 15

Answer

Minimum is 30 The 1st quart is 80. Median is 170 3rd quart is 252 Maximum is 410
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Work Step by Step

You have the values 30,70,90,120,220,224,280,410. The minimum is the lowest value which is 30. The median is the middle value which is 170. The maximum is the highest value which is 410 The first quartile is the middle value between the minimum and the median(30,70,90,120). The middle values are 70 and 90 so you have to find their average. The first quartile is 80. The third quartile is the middle value between the median and the maximum(220,224,280,410). The middle values are 224 and 280 so you have to find their average. The third quartile is 252.
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