Systematic Sampling Technique is used to select 5 numbers between 1 and 200. The first selected number is 12. What should be next four numbers? Solution What should be next four numbers? every number has the same probability of should be the next so the next 4 numbers would be between 1 and 200 that can be 200 / 5 = 40 -12 = 28 close to 28.