GATE (TF) Textile 2010 Question Paper Solution | GATE/2010/TF/21

Question 21 (Textile Engineering & Fibre Science)

If X and Y are two independent random variables, then Variance (X-Y) is

(A)Variance (X) + Variance (Y)
(B)Variance (X) – Variance (Y)
(C)Variance (Y) – Variance (X)
(D)Variance (XY)
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