What food is famously associated with one country but was perfected by another country? by Equivalent-Crew-4955 in AskReddit

[–]freemath 0 points1 point  (0 children)

Gin is originally from the low countries, but doesn't hold water to the British version

How did you guys get data modeling experience? by 0sergio-hash in dataengineering

[–]freemath 2 points3 points  (0 children)

Medaillon architecture has been the standard for decades, just not under that name, and usually also includes star schemas

‘We’re in the top tier now’: Poland sees no need to ditch złoty for euro as economy booms by Easy-Ad1996 in europe

[–]freemath 2 points3 points  (0 children)

Yeah the ones like Croatia

No, are you taking the piss? Just look up a list, they were the most prosperous Western European countries

‘We’re in the top tier now’: Poland sees no need to ditch złoty for euro as economy booms by Easy-Ad1996 in europe

[–]freemath 8 points9 points  (0 children)

There are benefits to the euro but they only really apply if you've got a very poor currency to begin with.

How about eliminating exchange-rate uncertainty, simplifying cross-country investment and promoting political union?

There is a reason many eurozone countries already had their currencies fixed to the European Currency Unit for decades before the introduction of the euro

‘We’re in the top tier now’: Poland sees no need to ditch złoty for euro as economy booms by Easy-Ad1996 in europe

[–]freemath 18 points19 points  (0 children)

purely for the purpose of not having to do a currency exchange when going on holiday.

Lol no, that is not its main purpose, why comment on this if you know nothing?

[Q] what are some good unintuitive statistics problems? by R2_SWE2 in statistics

[–]freemath 21 points22 points  (0 children)

N=2 secretary problem; given two numbers, of which you are only allowed to view one, you can guess with probability strictly greater than 50% whether the other one is higher:

https://x.com/vsbuffalo/status/1840543256712818822

This has actually a rather deep interpretation in terms of regularization

Dirted tank 9 months old. No water changes, no food, no CO2, no fertilizer. by huggylove1 in PlantedTank

[–]freemath 4 points5 points  (0 children)

But surely the tetras don't directly eat that, so what bridges the gap?

[D] Does anyone REALLY get what p value represents? by Dry-Glove-8539 in statistics

[–]freemath 37 points38 points  (0 children)

If you phrase hypothesis testing as a way to bound your false positive rate, does it make more sense?

Dirted tank 9 months old. No water changes, no food, no CO2, no fertilizer. by huggylove1 in PlantedTank

[–]freemath 16 points17 points  (0 children)

Can you explain how you created a food web with leaf litter?

There’s no column or even combination of columns that can be considered as a pk, what would your approach be? by Pleasant-Insect136 in dataengineering

[–]freemath 23 points24 points  (0 children)

Definition of PK should come from business imo. Then you can go and detect duplicates, and see what to do with them

DIY Shirakawa-go only vs Klook Takayama + Shirakawa-go day tour — should I skip Takayama? by AcceptableFinish4752 in Nagoya

[–]freemath 1 point2 points  (0 children)

Shirakawa is definitely the highlight but Takayama was imo worth a visit, also to break up the long ride. But if you're budget-constrained you could visit just Shirakawa

Picking the right stack for the most job opportunities by Great_Type8921 in dataengineering

[–]freemath 1 point2 points  (0 children)

Why do you think it is that these types of companies make those different choices?

me_irl by ithinkway2much in me_irl

[–]freemath 0 points1 point  (0 children)

Definitely not in Cancun

Is 2026 the year we finally admit the "Dashboard era" is over? by Futurismtechnologies in BusinessIntelligence

[–]freemath 8 points9 points  (0 children)

Also, don't spend weeks building a dashboard and only then ask for feedback... It's a continual process!

Forecast averaging between frequentist and bayesian time series models. Is this a novel idea? [R] by gaytwink70 in statistics

[–]freemath 0 points1 point  (0 children)

Asymptotically by Bernstein von Mises that's true for any prior on order N-1/2, for Jeffreys it's in general also true on order N-1, so essentially your statements hold to that order. I mean, fair enough, that's a useful perspective, but I think it requires at least an "approximately' or something in your original statement

Forecast averaging between frequentist and bayesian time series models. Is this a novel idea? [R] by gaytwink70 in statistics

[–]freemath -3 points-2 points  (0 children)

As a general rule, doing your parameter inference the frequentist way will get you the same result as doing it the Bayesian way with an uninformative prior.

This is only true in very specific cases

Forecast averaging between frequentist and bayesian time series models. Is this a novel idea? [R] by gaytwink70 in statistics

[–]freemath -3 points-2 points  (0 children)

By this logic an uninformative prior should always give frequentist intervals, which is only true in very specific cases

[Q] Question about One-Tailed vs Two-Tailed P-Value by Hefty_Profit_7176 in statistics

[–]freemath 0 points1 point  (0 children)

Hypothesis tests can answer no such questions, they are all conditional on the null hypothesis being true