Science Memes

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Moon Dust (mander.xyz)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 1 week ago* (last edited 1 week ago) (8 children)

That's funny and all but if it happened 1 in 12 the chances that it's very common are orders of magnitudes higher than it being super rare DUH

[–] [email protected] 16 points 1 week ago* (last edited 1 week ago) (7 children)

It's a very non-representative, very small sample. The error bars in the statistical inference to the whole population includes both "very common" and "one-in-a-million".

[–] [email protected] 2 points 6 days ago (1 children)

What do the bar represent in 3d space?

What do they represent in 3d space?!? (aggressiveduck.jpg)

Gaussian distributions.

[–] [email protected] 1 points 6 days ago

Not every error bar represents a Gaussian, if for no other reason that most error bars aren't symmetric.

The error bars for small sample size relative to population size are Gaussian.

Error due to a non-representative sample can have a variety of shapes, but their distribution might also be unknown. We do frequently, almost implicitly, assume unknown distributions to be Gaussian, but we should recognize that's not necessarily a true fact about the universe.

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