sixes_and_sevens comments on Open Thread, Apr. 20 - Apr. 26, 2015 - Less Wrong

3 Post author: Gondolinian 20 April 2015 12:02AM

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Comment author: Lumifer 21 April 2015 03:46:00PM 0 points [-]

because the statistics folks to often think that real world data is supposed to follow a normal distribution like the textbook example they faced in university.

That is, ahem, bullshit. Stupid undergrads might think so for a short while, "statistics folks" do not.

Comment author: sixes_and_sevens 21 April 2015 04:17:53PM 1 point [-]

"Statisticians think everything is normally distributed" seems to be one of those weirdly enduring myths. I'd love to know how it gets propagated.

Comment author: gjm 21 April 2015 04:40:49PM 8 points [-]

I strongly suspect that a large part of its recent popularity is because in the recent CDO-driven crash it suited the interests of the (influential) people whose decisions were actually responsible to spread the idea that the problem was that those silly geeky quants didn't understand that everything isn't uncorrelated Gaussians, ha ha ha.

Comment author: Lumifer 21 April 2015 06:37:09PM 1 point [-]

Someone was overly impressed by the Central Limit Theorem... X-)

Comment author: Kindly 21 April 2015 09:32:44PM 0 points [-]

Given that I remember spending a year of AP statistics only doing calculations with things we assumed to be normally distributed, it's not an unreasonable objection to at least some forms of teaching statistics.

Hopefully people with statistics degrees move beyond that stage, though.

Comment author: Emile 21 April 2015 09:51:15PM 0 points [-]

I can't say I ran into it before (whereas "economists think humans are all rational self-interested agents", jeez...)