Under normal circumstances, students who majored in science or the humanities can apply for postgraduate programs in economics and business. Science majors who apply for humanities subjects are also usually admitted. However, it is unusual for humanities majors to be admitted to master's programs in science and engineering.
This will depend on the individual's Bachelor's degree and transcript i.e. what they studied as an undergraduate.
Students who did not study chemistry and math in high school cannot apply for medical programs.