The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 1-46414-253-X
ISBN 13: 978-1-46414-253-6

Chapter 2 - Describing Distributions with Numbers - Apply Your Knowledge: 2.2

Answer

Mean with U.S.: 2,604.28 Mean without U.S.: 2,427.71 Difference (how much the mean increases with the U.S. counted): 176.57

Work Step by Step

Sum of all countries (with U.S): 91150 # countries: 35 $ 91150 / 35 = 2604.28 $ Sum of all countries (without U.S.): 82542 # countries (without U.S.): 34 $ 82542 / 34 = 2427.71 $ $2604.28 - 2427.71 = 176.57 $
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.