Law-of-averages meaning

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.
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The popularly held supposition that a possible event can be expected to occur with a frequency at or near its probability.
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(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.
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(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.

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