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If standard deviation of marks obtained by students of a class is 1.4, then variable of distribution will be –

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If standard deviation of marks obtained by students of a class is 1.4, then variable of distribution will be –

(A) 1.2

(B) 0.38

(C) 1.96

(D) 1.4

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1 Answer

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Answer is (C) 1.96

Standard deviation

(σ) = 1.4

Variation (σ2)= (1.4)2 = 1.96

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