Which of the following sampling plans use random methods of selections?
A) Simple random sampling
B) Stratified sampling
C) Cluster sampling
D) Systematic Sampling
E) All of these

Question

Quizplus · Accepted Answer

All of these sampling plans utilize random methods of selection.

- Simple random sampling involves selecting individuals from the population at random, such that each individual has an equal chance of being selected. 
- Stratified sampling involves dividing the population into strata (subgroups) and then randomly selecting individuals from each stratum. 
- Cluster sampling involves dividing the population into clusters (groupings) and then randomly selecting entire clusters to include in the sample. 
- Systematic sampling involves selecting individuals from the population at equal intervals (e.g. every 5th person).

All of these methods involve a random component in the selection process.

Which of the Following Sampling Plans Use Random Methods of Selections