Answer:
mutually exclusive events
Explanation:
mutually exclusive events
it is a term normally used in statics which defined 2 or more events cannot overlapped each other. Mean to say that if one even occur at any particular time then other event cannot occur. it describe replacement of one event by other one.
examples of mutually exclusive events are
1 - occurrence of day and night at same time at same place is mutually exclusive.
2 - occurrence of head and tail at same time is mutually exclusive.