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Chapter 7: Probability
Figure 7-13:
Venn diagram for
Example 7-15
Figure 7-13
shows a common portion for both events. However, sometimes
there is not such a common portion between events. In such cases we are
dealing with events which are classified as
mutually exclusive
events.
Mutually Exclusive Events
Sometimes events may have nothing in common. In such cases, we may
deal with the concept known as
mutually exclusive events.
Definition: Mutually Exclusive Events
Two events A and B are said to be mutually exclusive if they have no
elements in common. In other words, if the intersection is empty.
Figure 7-14
shows two mutually exclusive events
A
and
B
. Observe that
they do not have any common portion.