In this section, we prove that binomial distribution belongs to the exponential family but once I went through the proof it stated that Z~(n,μ) then stated that Z=Y/n. And then we went on to prove that y belongs to the exponential family, I wanna know how proving Y belongs to exponential family proves that Z belongs exponential family?
And 2ndly can we use the proof shown in this video in the exam? ''
And I have a 3rd question is, when b(θ)=-ln(-θ), then how b'(θ)=-1/θ? shouldn't it be b'(θ)=1/θ
Thank you
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Last edited by a moderator: Aug 8, 2017