[商管] [統計]-機率問題
題目上說x1 x2 x3是服從poisson~問p(x1<x2<x3)=1/6是否正確~
解答上是寫不正確~~why?
而接著Y1 Y2 Y3服從gamma~問p(y1<y2<y3)=1/6是否正確~
解答上寫正確...
我想說這應該是排序上的問題~~
請求各位高手幫解~
謝謝!!
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