CA CPT Dec 2016 Question Paper Quantitative Aptitude for online practice

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Question : 46 of 50

Marks: +1, -0

If X & Y are two independent normal variates with means μ1 & μ2 and standard deviations 1& 2 respectively, then X + Y follows………….. :

Mean = $μ_1 + µ_2$ , standard deviations = 0
Mean = $μ_1 + μ_2$ , standard deviations = $σ^2_1 + σ^2_1$
Mean = 0, standard deviations = $σ^2_1 + σ^2_1$
Mean = $μ_1 + μ_2$ , standard deviations = $√{σ^2_1 + σ^2_1}$

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