Answer
P(Dolphin and Whales) = P(Dolphin) x P(Whale)
= 0.65 x 0.63
= $0.195 \ne 0.1$
Hence the events are not independent.
Work Step by Step
As given above
The Basic Practice of Statistics 7th Edition
by Moore, David S.; Notz, William I.; Fligner, Michael A.
Published by
W. H. Freeman
ISBN 10:
146414253X
ISBN 13:
978-1-46414-253-6
Chapter 13 - General Rules of Probability - Chapter 13 Exercises - Page 321: 13.32c
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