Algebra 2 (1st Edition)

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

Chapter 11 Data Analysis and Statistics - 11.3 Use Normal Distributions - 11.3 Exercises - Problem Solving - Page 761: 31



Work Step by Step

$\text{z-score}=\frac{\text{data item-mean}}{\text{standard deviation}}$ $|\frac{5-4.6}{0.4}|=1$ The normal distribution is symmetric about the mean. Thus, using the 68-95-99.7 rule and the graph we get: $P( x\geq\overline{x}+\sigma)=313.5\%+2.35\%+0.15\%=16\%$
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.