Statistics: Collection of Data · Class 11 · CBSE · Commerce Economics
Why must a sample selected for a sample survey be representative of the population?
Practice question from Statistics: Collection of Data (Class 11 · CBSE · Commerce Economics), with the correct answer and a step-by-step solution.
medium · MCQ · Q-5B5DE2
Why must a sample selected for a sample survey be representative of the population?
- A.To ensure that every unit in the population is investigated
- B.To make the sample findings reasonably reliable for the whole populationCorrect answer
- C.To eliminate the need for collecting data
- D.To make the survey identical to a census
Solution
A representative sample contains characteristics similar to those of the population. Therefore, conclusions drawn from it can be reasonably generalised to the entire population.
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