Answer: Depending on the level or education.
Explanation: Some occupations require degrees and what not so if you have a degree or a phd you can get a job that has a higher wage because it required more knowledge. A job can offer a lower wage because it is easier or does not require studying or as much effort. An other factor is the rank, a janitor will be payed less than a lawyer because it is a very low rank. Difficulty also. Doctors and surgeons will be payed well because other humans lives are at risk whenever they perform a surgery