Random samples are used in population sampling situations when reviewing historical or batch data. The key to random sampling is that each unit in the population has an equal probability of being selected in the sample.
Individuals pursuing a career as an occupational therapist usually need to earn a post-baccalaureate degree from an accredited college or university or education deemed equivalent.  Education and training. A master's degree or higher in occupational therapy is the minimum requirement for entry into the field.
Major: Occupational Therapy. Youâll need at least a masterâs degree to work as an occupational therapist. Some combined bachelorâs/masterâs programs are available, but the emphasis here is on grad school. Though the educational requirements are steep, the rewards are great.