Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 5 - Section 5.1 - Assess Your Understanding - Applying the Concepts - Page 266: 32d

Answer

$P(E)=\frac{1}{365}\approx0.00274$ It means that, if we randomly select 3650 people, we would expect that the number of people that have a birthday on November 8 is about 10.

Work Step by Step

Event = "birthday on November 8" = {Nov 8}. So, $N(E)=1$ One year = 365 days, so $N(S)=365$ Using the Classical Method: $P(E)=\frac{N(E)}{N(S)}=\frac{1}{365}\approx0.00274$
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