trong forecasts should use specific numbers for probabilities, rather than vague phrases, or what is known as “elastic language” (when we are told there is a “fair chance” or a “serious possibility” of something happening). Numbers make a forecast exact, which decreases the risk of confusion. In addition, it shows the observer that the prediction is an estimate—a conclusion reached by the forecaster that has been developed due to evidence-based research and comparison, rather than a subjective judgment.