Question

A researcher divides his population in to certaim groups and fixes the size of sample from each group. It is called

Answer 1

Thanks for the question!

It is definitely a very interesting question to solve and do some brainstorming.

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A researcher divides his population into certain groups and fixes the size of sample from each group. It is called Random Sample.

A random sample is a subset of that particular population which has an equal probability of being chosen.

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Hope it helps and solves your query!!