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dentify the type of sampling technique used by the researcher in each of the following situations 1. The office clerk gave the researcher a list of 500 grade 10 students. The researcher selected every 2oth name on the list. 2. In a recent research that was conducted in a private school, the subjects of the study were selected by using the Table of Random Numbers. 3. A researcher interviewed people from each town in the province of Albay for his research on population. 4. A researcher is doing a research work on the students' reaction to the newly implemented curriculum in mathematics and interviewed every 10th student entering the gate of the school. 5. A researcher who is studying the effects of educational attainment on promotion conducted a survey of 50 randomly selected workers from each of these categories: high school graduate, with undergraduate degrees, with master's degree, and with doctoral degree