Assertion: probability | /r/UsedFor | refer to event
Facets:
Source sentences:
text: A probability of 1 refers to an event that is certain to happen.
text: A probability of 1 refers to an event that is certain to happen.
text: A probability of 1 refers to an event that is certain to happen.
text: A probability of 1 refers to an event that is certain to happen.