Insurance risk refers to the uncertainty about the outcome of an event under certain circumstances. In probabilistic terms, uncertainty is defined as the probability of the outcome of an event being between zero and one, when the probability of the outcome of an event being zero or one. It means that the event is certain to occur or certain not to occur, and therefore, there is no risk.
According to the above definition, which of the following is true?
When the probability of an event occurring as a result is zero , the event must occur.