law of averageslaw of averages
the popularly held supposition that a possible event can be expected to occur with a frequency at or near its probability
law of averages
The principle holding that the relative frequency with which an event occurs in repeated trials will converge to a stable value over time as the number of samples increases. Also called Bernoulli's law, law of large numbers.
- (statistics) The statistical tendency toward a fixed proportion in the results when an experiment is repeated a large number of times; the law of large numbers.
- (informal) An imaginary or perceived "law" of probabilities which is wrongly used to predict results in the short-term.
- This coin has landed on heads ten times, so by the law of averages it must land on tails next time.