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Q. |
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 |
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