demographic

Demographic analysis, the statistical description of human populations, is a tool used by government agencies, political parties, and manufacturers of consumer goods. Polls conducted on every topic imaginable, from age to toothpaste preference, give the government and corporations an idea of who the public is and what it needs and wants. The government's census, which is conducted every ten years, is the largest demographic survey of all. Today demographic is also being used as a noun; so, for example, TV advertisers are constantly worrying about how to appeal to "the 18-to-24-year-old demographic".