Sampling frame is a list of samples b boundary of the

5. Sampling frame is,
a) list of samples
b) boundary of the sample area
c) list of all units within the scope of the survey/ population
10
8
6
2
4
12
3
5
Sample

d) method used to draw a sample from the population
e) frame/structure used in the sampling methods
6. Which of the following are not advantages of simple random sampling?
I. the method is simple to implement
II. no need additional information
III. formulas are easy to use
IV. it cannot be used if the list does not exist need sampling frame
V. the statistical theory for the method is very well established
7. Stratified random sampling is carried out by