Question

why is every item of the population included under random sampling?​

Answer 1

Explanation:

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Under random sampling, each member of the subset carries an equal ... the population as a whole, in that case, any random variation is termed as a sampling error.

Answer 2

Answer:

This is due to the fact that the item or it's marketing becomes easy.Also,different areas have different population.So,it is impossible to sample items to them in sequence.