RobinZ comments on Expected utility without the independence axiom - Less Wrong

9 Post author: Stuart_Armstrong 28 October 2009 02:40PM

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Comment author: RobinZ 28 October 2009 04:31:26PM *  2 points [-]

It requires the lotteries to be independent, which implies uncorrelated. Stuart_Armstrong specified independence.

Comment author: bgrah449 28 October 2009 04:36:22PM 1 point [-]

Ugh, color me stupid - I assumed the "independence" we were relaxing was probability-related. Thanks RobinZ.

Comment author: Stuart_Armstrong 29 October 2009 01:07:22AM *  1 point [-]

You know, I didn't even realise I'd used "independence" both ways! Most of the time, it's only worth pointing out the fact if the random variables are not independent.

Comment author: RobinZ 28 October 2009 04:39:40PM 0 points [-]

No problem. (Don't you love it when people use the same symbol for multiple things in the same work? I know as a mechanical engineer, I got so much joy from remembering which "h" is the heat transfer coefficient and which is the height!)