Probability is sometimes defined as
A)the expected profit of a fair bet.
B)the most likely outcome of a given experiment.
C)the outcome that will occur on average for a given experiment.
D)the relative frequency with which an event will occur.

Question

Quizplus · Accepted Answer

Probability is the measure of the likelihood of an event occurring. It is typically described as the relative frequency with which an event will occur over the long run of repeated trials. This means that as we conduct more and more trials of an experiment, the probability of an event occurring can be approximated by the number of times the event occurs divided by the total number of trials. Therefore, D is the best choice as it describes the definition of probability. Choice A is incorrect because not all bets are fair, and probability is not solely concerned with profit. Choice B is incorrect because the most likely outcome is not necessarily the same as the probability of an event occurring. Choice C is incorrect because an outcome happening on average does not necessarily correspond to its probability of occurring.

Probability Is Sometimes Defined as