Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0-32191-121-0
ISBN 13: 978-0-32191-121-6

Chapter 3 - Probability - Section 3.3 The Addition Rule - Exercises - Page 162: 13

Answer

The probability that a randomly selected student is male or a biology major =0.625.

Work Step by Step

Let 'A' event of a student with biology major and 'B' is the event of a male student. P(A U B) = P(A) + P(B) - P(A and B) =(10/32) + (14/32) - ( 4/32) = 20/32 = 0.625
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