APPSC Group 2 Prelims 2019 · Question 42

Question 42 of the APPSC Group-II Screening Test 2019 (5 May 2019). Try it first, then open the answer and explanation.

1. Screening 2019 · Q42 · Mental Ability · Data Interpretation & Statistics

   For a moderately skewed distribution, what is the empirical relationship between Mean, Median and Mode?

   మధ్యస్థంగావక్రీకరించిన విపణి, ఏ అనుభావిక సంబంధం మీన్, మీడియన్, మోడ్లమధ్య కలిగి ఉంటుంది ?

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   Answer: Mean – Mode = 3(Mean – Median)

   సమాధానం: మీన్ – మోడ్ = 3(మీన్ – మీడియన్)

   Karl Pearson's empirical rule is Mode = 3 Median – 2 Mean, which rearranges to Mean – Mode = 3(Mean – Median).

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