A first step in using sampling as a tool of research is?

نمونے لینے کو تحقیق کے ایک آلے کے طور پر استعمال کرنے کا پہلا قدم ہے؟

Define the population

List the population

Obtain an adequate sample

Select a representative sample

The first step in using sampling as a tool of research is to "Define the population."
This involves clearly identifying the group or population that the researcher wants to study.