Gamma and exponential distribution

[mcguiry03]

Homework Statement

prove that,
for gamma distribution
μ=αθ
σ^2=αθ^2
for exponential distribution
μ=θ
σ^2=θ^2

 

[Ray Vickson]

Homework Statement

prove that,
for gamma distribution
μ=αθ
σ^2=αθ^2
for exponential distribution
μ=θ
σ^2=θ^2

What have you done so far? Show your work.

RGV

 

[mcguiry03]

i keep on searching the internet about this type of distribution and i am not an english speaking person that is why i hardly understand what they say... i just wanted to answer this bcos it is a challenge problem for an extra points... the problem is, we skip this topic bcos we can not finish the whole syllabus by the end of our summer classes...