Stats: Data and Models (3rd Edition)

Published by Pearson
ISBN 10: 0321692551
ISBN 13: 978-0-32169-255-9

Chapter 4 - Displaying and Summarizing Quantitative Data - Exercises: 16

Answer

a. Mean = (35,38,40,40,54,67,81,94,125,130,555) / 11 = 114.45 b. Median = middle value = 67 $Q_{1}$ = 25% of the data which is 3rd value = 40, $Q_{3}$ = 75% of the data which is 9th value = 125 c. Range = largest value – smallest value = 555 – 35 = 520 IQR = $Q_{3} - Q_{1}$ = 125 – 40 = 85

Work Step by Step

a. Mean = (35,38,40,40,54,67,81,94,125,130,555) / 11 = 114.45 b. Median = middle value = 67 $Q_{1}$ = 25% of the data which is 3rd value = 40, $Q_{3}$ = 75% of the data which is 9th value = 125 c. Range = largest value – smallest value = 555 – 35 = 520 IQR = $Q_{3} - Q_{1}$ = 125 – 40 = 85
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.