Sta*tis"tics (?), n. [Cf. F. statistique, G. statistik. See State, n.] 1. The science which has to do with the collection and classification of certain facts respecting the condition of the people in a state. [In this sense gramatically singular.]

2. pl. Classified facts respecting the condition of the people in a state, their health, their longevity, domestic economy, arts, property, and political strength, their resources, the state of the country, etc., or respecting any particular class or interest; especially, those facts which can be stated in numbers, or in tables of numbers, or in any tabular and classified arrangement.

Sta*tis"tics (?), n. [Cf. F. statistique, G. statistik. See State, n.] 1. The science which has to do with the collection and classification of certain facts respecting the condition of the people in a state. [In this sense gramatically singular.]

2. pl. Classified facts respecting the condition of the people in a state, their health, their longevity, domestic economy, arts, property, and political strength, their resources, the state of the country, etc., or respecting any particular class or interest; especially, those facts which can be stated in numbers, or in tables of numbers, or in any tabular and classified arrangement.

• (singular) An area of applied mathematics concerned with data collection, presentation, analysis, and interpretation.
  
• (collective noun) A collection of measurements, often related to demographic information such as population counts, incomes, population counts at different ages, etc. Some local governments have (or had) a Department of Vital Statistics; plural form of statistic.