Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 5 - Discrete Probability Distributions - Review Exercises - Section 5-3 - Page 305: 22


$\mu=188.5$ $\sigma^2=46.37$ $\sigma=6.81$

Work Step by Step

Given $p=0.754, n=250$, mean=$\mu=np=188.5$ variance=$\sigma^2=np(1-p)=46.37$ standard deviation=$\sigma=\sqrt {46.37}=6.81$
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.