If business is now a global affair, then the export-import business is important, lucrative and necessary. An export-import agent is not a broker --- the agents are lower on the business totem pole.
Most properties are measured using a number and a unit of measurement. The unit of measurement is a standard amount. The number compares the property to that standard amount. This means a tree that is ten times as tall as a meter stick is 10 meters tall.
As noted earlier, measurement is the process of assigning numbers to objects and events in accordance with a set of rules. To grasp the full impact of measurement, we need to understand the concept of a measurement scale. There are several different kinds of scales: nominal, ordinal, interval, and ratio. The distinction among scales becomes of particular importance when we conduct statistical analyses of data.