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.
In 2006, the middle 50 percent of real estate agents earned between $26,790 and $65,270 a year in the United States [source: Bureau of Labor Statistics ]. The average salary of Realtors doesn't change that much between hot and cold markets [source: Goolsby ].That's because in hot markets, the profession is flooded with real estate agents who think they can make a quick buck. With so many agents in the field, it limits how many homes any individual agent can sell.he average salary of Realtors doesn't change that much between hot and cold markets [source: Goolsby ]. That's because in hot markets, the profession is flooded with real estate agents who think they can make a quick buck. With so many agents in the field, it limits how many homes any individual agent can sell.