PhilGoetz comments on The usefulness of correlations - Less Wrong

13 Post author: RichardKennaway 04 August 2009 07:00PM

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Comment author: PhilGoetz 05 August 2009 04:02:15PM *  0 points [-]

"a variable Z which is experimentally found to have a good chance of lying close to X. Let us suppose that the standard deviation of Z-X is 10% that of X".

So, you have a confidence interval for X around Z.