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Problem: Urgent Need you help. Hi. This is Shoaib from Korea. I need your help in finding one solution. The problem explained as: Problem Statement I have to choose my best friend from the Posted - Wed Dec 13, 2006 7:01 am	Shoaib Mukhtar shoaib501 Offline Send Email
Re: How to find the mean and variance of 1/X? ... new ... Hi If X >0, ie. X assumes only positive values and E(X) and E(1/X)exist then E(1/X)>= 1/E(X)because 1/X is a convex function. Posted - Wed Nov 22, 2006 1:03 am	mahe_iima Offline Send Email
Re: How to find the mean and variance of 1/X? THANK YOU VERY MUCH! Posted - Wed Nov 22, 2006 12:58 am	wilsonwxwu Offline Send Email
Re: How to find the mean and variance of 1/X? ... I suggist to assume that y=1/x and make a transformation to this new r.v (y) and find f(y) then you can find the mean and variance. I will try to find it Posted - Tue Nov 21, 2006 12:44 am	zak_hi79 Offline Send Email
Re: a question about distribution convergence 1) function of a random variable is a random variable 2) Assuming normality, use central limit theorem. ... From: MOMEYA To: probability@yahoogroups.com Sent: Posted - Mon Nov 20, 2006 12:48 am	krieck krckhs Offline Send Email
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