Which of the following statements describe conditions when stratified random sampling should be used?
A. The population has distinct, significant strata
B. The sample size is too large to manage randomly
C. Strata are of equal importance for research outcomes
D. Homogeneous groups within strata are needed
E. Ensuring representation from each stratum is essential
Choose the correct answer from the options given below:
1
A, B, and C only
2
A, D, and E only
3
B, C, and D only
4
A, C, and D only