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by freemint 1525 days ago
Because it's a non-linear world? And the graphs seem very obviously skewed? And it's kurtosis also seems to differ from three?
1 comments

None of those things matter to the central limit theorem.

If I have IID observations with finite 2nd moment (variance), then their average will pretty quickly converge to a Gaussian distribution. And I can relax a lot of this and still recover a variant of CLT.

Of course maybe the calculation is different, eg it’s not like there are N independent observations, but rather some other complex condition solved for the mean estimate.