QUESTION TWO The table below shows the number of students in each year at a certain university: Year of study 1 2 3 4 5 6 7 No. of students 300 280 275 175 92 48 30 You would like to select a random sample of 250 students from this university. i. Explain how you would choose a simple random sample. ii. Explain how you would choose a sample using systematic (interval) sampling method. 4 iii. If you use stratified sampling method to choose a sample, explain how this could be done and how many students from each year group are to be chosen for the sample. iv. Explain how you would chose a sample using cluster sampling design.