Answer
P(A) = P(1) + P(2) + P(3) = 0.05 + 0.20 + 0.30 = 0.55
P(B) = P(1) + P(3) + P(5) = 0.05 + 0.30 + 0.15 = 0.50
P(C) = 1 - P(4) = 1 - 0.30 = 0.70
Work Step by Step
As given in answer
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 3 - Probability - Exercises 3.1 - 3.34 - Learning the Mechanics - Page 120: 3.11
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