The mass of the body is found by simply weighing a person on a scale. The volume of the body is most easily and accurately determined by completely immersing a person in water and calculating the volume of water from the weight of water that is displaced (via underwater weighing).
Mailman Salary Statistics as of 2015. Average annual salary for a Mailman is $36600 based on statistics in the U.S. as of 2015. The highest salary recorded was $76765. The lowest salary reported was $15604. These figures will vary on a state to state basis as these are averages across all 50 states.
Best Paid. The best-paid postal mail carriers in the United States are based in the District of Columbia, where average annual salaries amount to $52,720, or $25.35 per hour.hese workers are paid an average hourly rate of $24.16 which equates to an average annual salary of $50,250. The top 10 percent of earners bring home an annual salary of $55,790, while the lowest 10 percent of earners bring home $38,490.