Re: TransformedDistribution -- odd problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg120484] Re: TransformedDistribution -- odd problem*From*: paulvonhippel at yahoo <paulvonhippel at yahoo.com>*Date*: Mon, 25 Jul 2011 07:29:28 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <j0gh7s$bd7$1@smc.vnet.net>

I also have a more complicated example where Mathematica will give the mean of A and the mean of B, but when I ask for the mean of A+B Mathematica just echoes the input. (Here A and B are complicated functions of several random variables.) This strikes me as really odd, since of course Mean(A+B)=Mean(A)+Mean(B). What could be going on here? Under what circumstances does Mathematica echo the input when asked to provide a Mean? Is there a setting I need to change? I suspect this is a software issue rather than a mathematical issue.