If, under a given assumption, the probability of a particular observed event is extremely small, we conclude that the assumption is probably not correct. this represents the

That represents the rare event rule

If, under a given assumption, the probability of a particular observed event is extremely small, we conclude that the assumption is probably not correct. This represents the rare event rule. The rare event rule is used for inferential statistics. The rare event rule is conducted when an individual or group wants to test a claim regarding a property of a population.