1.A local NGO is seeking to form a sample of 500 volunteers from a population of 4000 to conduct a survey about community development projects. The team leader of the research had given an identification number from 1 to 4000 to every individual in the population and decided to select every 8^th person in the list.

2.A research has grouped the Aurak students into freshman, sophomore, junior, and senior years and are numbered one, two, three, and four, respectively. A random number generator is used to pick two of those years and all students in those two years are included in the sample.

3.The ministry of education has recently conducted a survey on high school teachers' performance in Ras Al Khaimah. The researchers grouped the teachers in to two groups based on their gender and randomly selected 50 high school female teachers and 50 high school male teachers.

4.A student interviewed his classmates in ECON 104 class to determine how many social media account a student owns, on the average.

5.Suppose that your Management teacher wants to conduct a focus group discussion to assess student learning. He seeks to select 10 students from a class of 50 students using a lottery system.

Require:

Identify the appropriate sampling method for each case (Simple random sampling, Systematic random sampling, Stratified random sampling, Cluster sampling or Convenience sampling)

Provide adequate discussion on why the chosen sampling method is applicable.