[機統] 判斷是否獨立
現有4個R.V. x,y,a,b ~N(u,sigma^2)
各已知其mean還有variance
由這四個R.V.形成兩個新的R.V.
x-a-b & y+a-b
且算出來的結果這兩個R.V.的covariance是0
請問這兩個新的R.V.是獨立嗎?
問題可能沒甚麼水準 見笑了 XD
謝謝
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