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.
The average pay is $54,314. City Carriers are paid at $53,275 on the average each year. They can earn anywhere from $45,000 to $60,000. Mail Carriers of the US Postal Service, meanwhile, receive $51,009 on the average each year. Their salaries range from $43,000 to $62,000. Mail Processing Clerks of the USPS earn an average of $51,457 each year, with salaries ranging from $40,000 to $60,000.