Answer
25
Work Step by Step
Given $p=0.04$, let $k=1$ and use the negative binomial distribution formula, we have
$\mu=\frac{k}{p}=1/0.04=25$
Thus, the average number of donors that would be needed to get a person with type AB blood is 25.
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: 30
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.
