Question: Let Xi N( = 40, = 3) for i [1, 2]. Calculate: (i) 95% limits for X1 + X2. (ii) P r(|X1 X2| > 5).

Let Xi N( = 40, = 3) for i [1, 2]. Calculate: (i) 95% limits for X1 + X2. (ii) P r(|X1 X2| > 5).

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