Basic College Mathematics (10th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0134467795

ISBN 13: 978-0-13446-779-5

Chapter 10 - Statistics - Review Exercises - Page 750: 28

Answer

257.33

Work Step by Step

$mean=\frac{243\times1+247\times3+251\times5+255\times7+263\times4+271\times2+279\times2}{1+3+5+7+4+2+2}$ $mean=\frac{243+741+1255+1785+1052+542+558}{24}$ $mean=\frac{6176}{24} =257.333333333333333$ We can round this result to the nearest hundredth, which is 257.33

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.

GradeSaver will pay $15 for your literature essays

GradeSaver will pay $25 for your college application essays

GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical

GradeSaver will pay $10 for your Community Note contributions

GradeSaver will pay $500 for your Textbook Answer contributions