問題詳情

2. Let the independent random variables X and Y have the Exponential distribution with parameter λ = 1. Set U = X + Y and V = X/Y.
【題組】(1) Derive the joint p.d.f. of U and V •(20%)

參考答案

答案：C
難度：簡單0.899598
統計：A(8),B(13),C(448),D(10),E(0)

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有人可以幫忙解釋一下嗎???謝謝