| Question: Which of the following techniques yields a simple random sample | A. | choosing volunteers from an introductory psychology class to participate | B. | listing the individuals by ethnic group and choosing a proportion from within each ethnic group at random | C. | numbering all the elements of a sampling frame and then using a random number table to pick cases from the table | D. | randomly selecting schools, and then sampling everyone within the school | Answer» c. numbering all the elements of a sampling frame and then using a random number table to pick cases from the table |  
| Note: | The above multiple-choice question is for all general and Competitive Exams in India. |