A numerical factoid is a piece of information that is expressed in numerical form. It is usually a STATISTIC or other type of data that is presented in a concise and easily understandable way. The term 'STAT' is an abbreviation for the word 'STATISTIC', which is a numerical factoid. A STATISTIC is a numerical representation of a phenomenon or event, such as the number of people who have a certain disease or the average temperature of a region.