A researcher divides the populations into PG, graduates and 10+2 students and using the random digit table he selects some of them from each. This is technically called

Biotechnology Engineering (M.Phil./Ph.D.) 2020 Panjab University Entrance Exam With Answers

Practice Mode:

A: Stratified sampling

B: Stratified random sampling

C: Representative sampling

D: None of these

The answer is: B

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