Answer
The probability distribution is bell shaped.
Work Step by Step
$np(1-p)=1200\times0.5\times(1-0.5)=1200\times0.5\times0.5=300\gt10$
This means that the probability distribution is bell shaped. Then, we can use the Empirical Rule.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 6 - Review - Test - Page 357: 8b
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.
