If X, X2, X3 and X are independent observations from a univariate normal population with mean...

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If X₁, X2, X3 and X₁ are independent observations from a univariate normal population with mean zero and unit variance, state giving reasons the sampling distribution of the following. (i) u = √2 X3 √x² + x²/ (ii) v = 3X²/ X² + X² + X² If X₁, X2, X3 and X₁ are independent observations from a univariate normal population with mean zero and unit variance, state giving reasons the sampling distribution of the following. (i) u = √2 X3 √x² + x²/ (ii) v = 3X²/ X² + X² + X²