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試卷名稱：104年 - 104 國立臺灣大學_碩士班招生考試:微積分(C)#118498
年份：104年
科目：台大◆企管◆微積分(C)
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
