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MPSC State Service 2020 · CSAT · Question 1 of 77

Results obtained from an analysis of a deliberately selected sample may be reliable if: (a) Investigators are unbiased. (b) Investigators are experienced. (c) Investigators select a favourable sample. (d) Investigators use statistical methods.

Reading Comprehension

  1. AAll of the above are correct.
  2. BOnly a, b and c are correct.
  3. COnly a and b are correct.Correct
  4. DNone of the above are correct.

Answer: C. Only a and b are correct.

Explanation

A deliberately selected sample can still be reliable if investigators are unbiased and experienced; selecting a merely 'favourable' sample or using statistics alone does not make it reliable: only a and b are correct.

Source: MPSC Rajyaseva Prelims 2020 – CSAT Paper II (Set C), official paper

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