Systematic random sampling. Systematic random sampling is done through some ordered criteria by choosing elements from a randomly arranged sampling frame. You can chose from every ânthâ element in a sample frame i.e. 10th, 15th, 20th and so on.
An associate or bachelor's degree is typically required to pursue employment as a diagnostic medical sonographer. Students also have the option to graduate with a degree in a related field, pursue a certificate program in diagnostic medical sonography and then receive on-the-job training.earn how to become a diagnostic medical sonographer. Research the job description, education and licensing requirements to find out how to start a career in medical sonography.
The U.S. Bureau of Labor Statistics expects employment of sonographers to grow 44% from 2010 to 2020. Associate's and bachelor's degree programs will train you in multiple areas of sonography and prepare you for an entry-level position as a diagnostic medical sonographer.achelor's in Medical Sonography. Bachelor's-level students are usually required to complete general education requirements and introductory-level healthcare courses during the first two years of the degree program.