The Gambler’s Fallacy, also known as the Monte Carlo fallacy or the fallacy of the maturity of chances, is the belief that, if something happens more frequently than normal during a given period, it will happen less frequently in the future (or vice versa).

One useful counter-measure is to ask: What correlation data am I using to form my opinion on? Is it valid or is it simply a hunch?

For a full list of the most common biases, click here.