AIEEE 2012 Solved Paper

Section: Mathematics

Question : 88 of 89

Marks: +1, -0

Let x1,x2,.........,xn be n observations, and let x be their arithmetic mean and σ2 be their variance.
Statement 1 : Variance of 2x1,2x2,......,2xn is 4σ2.
Statement 2: : Arithmetic mean of 2x1,2x2,......,2xn is 4x.

[AIEEE 2012]

Statement 1 is false, statement 2 is true
Statement 1 is true, statement 2 is true; statement 2 is a correct explanation for statement 1
Statement 1 is true, statement 2 is true; statement 2 is not a correct explanation for statement 1
Statement 1 is true, statement 2 is false

Validate

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