Identify the type of sampling method used by the researcher in each situation: simple random sampling, systematic sampling, stratified sampling, or cluster sampling.
1. A researcher chose the participants of his study by selecting every 8th member of the population.
2. A researcher interviewed all the teachers in each of 15 randomly selected private schools in Cagayan de Oro City.
3. A researcher interviewed people from each barangay in the municipality of Alubijid 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 5th student entering the gate of the school.
5. A researcher randomly selected 15 barangays in a town for her study. She did this by writing the names of each barangay on a piece of paper which she folded and put in a bowl then she draw 15 pieces of paper from the bowl.