Epidemiology is about the understanding of disease. development and the methods used to uncover the etiology, progression, and treatment of the disease. . Information (data) is collected to investigate a question.
Real estate sales agents make an average salary of about $53,140, which is in the middle of the pack for business jobs. They make less than less than sales representatives, who bring in $64,670.
The median gross income of a Realtor in 2010 was $34,100, according to the National Association of Realtors 2011 Member Profile. Nearly four in 10 NAR members reported gross incomes below $25,000, while 17 percent reported incomes of $100,000 or more, NAR found.