問題詳情

9.If a positive variable λ follows a gamma distribution, ie., λ~Gamma(a,β),where a and 8 are positive real numbers. Consequently, the probability density function for λ is as follows.


where Γ(Z) is the gamma function and defined as

if Z is a complex number with a positive real part. What is the var(λ) a = 1 and β = 2? (5%)
(A) 1/4
(B) 1/2
(C) 1
(D) None of the above

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增