Answer:

Two events A and B are exclusive if they cannot occur together.

For example, if A is the event getting a total of 6 when throwing two dice and B is getting a total of 9 when throwing two dice then A and B are exclusive, for they cannot both happen at the same time. However, if C is the event getting a double when throwing two dice A and C are not exclusive as both are possible with a throw of two 3s.

When three or more events are such that no two of them can occur at the same time, they are said to be mutually exclusive.