Social & Preventive Medicine A population is divided into relevant subgroups and random sample selection is done from each of the subgroups. This is which type of sampling method? A Systematic random sampling B Stratified random sampling C Simple random sampling D Cluster sampling 💡 Explanation A population is divided into relevant subgroups and random sample selection is done from each of the subgroups. This is which type of sampling method? ✓ Correct Answer: B. Stratified random sampling