Geographic Terms and Concepts - Census Tract. Census Tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity that are updated by local participants prior to each decennial census as part of the Census Bureau's Participant Statistical Areas Program.
1 Average arrest, court and incarceration costs amount to nearly $2,000 per arrest (3). 2  Cities spend an average of 7.5 million dollars on prostitution control every year, ranging from 1 million dollars to 23 million dollars (3). 3  Prostitution in the US is a 14.5 billion dollar a year business (2). The average age of someone entering into prostitution is 14 years (2). 2  At least 75% of prostitutes were sexually and physically abused children (2). 3  The majority of prostitutes become addicted to alcohol or drugs (2).
That means that there is one 12 year old, one 13 year old, one 14 year old, and so on. The average age of entry in this hypothetical town is the average of these six individuals, which is (12+13+14+15+16+17)/6 = 14.5.But when researchers arrive in this town, they donât just survey these six minors: they will also survey others who have started prostitution in the years past.he average among all of these youth will be: (12+(12+13)+(12+13+14)+(12+13+14+15)+(12+13+14+15+16)+(12+13+14+15+16+17))/21 = 13.7âwhich is almost one year younger than the actual average age of entry.