Answer
$\mu=1.25$
$\sigma=0.559$
Work Step by Step
Given $p=4/5=0.8$, we have $q=1-p=0.2$.
Using the formula for a geometric distribution, we have
$\mu=1/p=5/4=1.25$ and
$\sigma=\sqrt {q/p^2}=\sqrt {0.2/0.8^2}=0.559$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 5 - Discrete Probability Distributions - 5-4 Other Types of Distributions - Extending the Concepts - Page 300: 31
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
