yetAnotherUser

joined 5 months ago

I don't think that's why kids hate it. Rather, teachers fail to explain the underlying motivations, the reasoning and the purpose which makes math feel like arbitrary decisions.

I'd argue math is much more uncertain than other subjects. What's the purpose of the endoplasmic reticulum in your cells? Just memorize the textbook. Find all X such that [statement] is true? You better have some creativity! Or a lot, depending on the problem.

Some accompanying evidence for uncertainty: https://xkcd.com/2117/

[–] yetAnotherUser@discuss.tchncs.de 2 points 3 hours ago (1 children)

I am if and only if I am.

[–] yetAnotherUser@discuss.tchncs.de 6 points 18 hours ago (1 children)

Zweibel would be two Bel (or two Decibel, converted to the better known unit) if you forgot about your space key.

Surely you mean Zwiebel.

[–] yetAnotherUser@discuss.tchncs.de 4 points 1 day ago* (last edited 1 day ago) (1 children)

I've found a proper approximation after some time and some searching.

Since the binomial distribution has a very large n, we can use the central limit theorem and treat it as a normal distribution. The mean would be obviously 500 billion, the standard deviation is √(n * p * (1-p)) which results in 500,000.

You still cannot plug that into WA unfortunately so we have to use a workaround.

You would calculate it manually through:

Φ(b) - Φ(a), with
b = (510 billion - mean) / (standard deviation) = 20,000
and
a = (490 billion - mean) / (standard deviation) = -20,000
and
Φ(x) = 0.5 * (1 + erf(x/√2))

erf(x) is the error function which has the neat property: erf(-x) = -erf(x)

You could replace erf(x) with an integral but this would be illegible without LaTeX.

Therefore:

Φ(20,000) - Φ(-20,000)
= 0.5 * [ erf(20,000/√2) - erf(-20,000/√2) ]
= erf(20,000/√2)
≈ erf(14,142)

WolframAlpha will unfortunately not calculate this either.

However, according to Wikipedia an approximation exists which shows that:

1 - erf(x) ≈ [(1 - e^(-Ax))e^(-x²)] / (Bx√π)

And apparently A = 1.98 and B = 1.135 give good approximations for all x≥0.

After failing to get a proper approximation from WA again and having to calculate every part by itself, the result is very roughly around 1 - 10^(-86,857,234).

So it is very safe to assume you will lose between 49% and 51% of your gut bacteria. For a more realistic 10 trillion you should replace a and b above with around ±63,200 but I don't want to bother calculating the rest and having WolframAlpha tell me my intermediary steps are equal to zero.

[–] yetAnotherUser@discuss.tchncs.de 5 points 1 day ago* (last edited 1 day ago) (4 children)

To expand a little:

For a much smaller sample size of just 1 million, the probability to lose just 1% off of the median is basically zero.

WolframAlpha doesn't even bother to calculate the exact result and just rounds it:

https://www.wolframalpha.com/input?i=P%5B490000+%3C+X+%3C+510000%5D+for+X%7EB%281000000%2C0.5%29

[–] yetAnotherUser@discuss.tchncs.de 1 points 2 days ago* (last edited 1 day ago)

To be fair, people with tumors behind their ears will likely hide it to avoid assholes staring/taking pictures. I don't see many cancer patients attending chemotherapy either because they are wearing hats/wigs.

Still, shouldn't they get cancer on their hands instead? That's the closest body part to your phone at any time on average, isn't it?

[–] yetAnotherUser@discuss.tchncs.de 21 points 2 days ago (3 children)

Ich hab mich durch den Mist gezogen und hier ist ein tl;dr:

  • DIE WIRTSCHAFT™
  • Immigranten morden deutsche Kinder
  • AKWs abgeschaltet weil dumm
  • Bürgergeldempfänger klauen dem Arbeiter ihr Geld
  • Irgendwas mit Corona hier und da
  • Ideologie™

Yeah, take everything German news agencies have to say about topics involving Israel with grains of salt. A shitton of independent left-wing German news agencies are pro-Israel. Those that aren't are usually full on tankie, pro-Russia and everything for some fucking reason.

[–] yetAnotherUser@discuss.tchncs.de 2 points 3 days ago* (last edited 3 days ago) (1 children)

Soweit ich nach 5 Minuten Wikipedialesen weiß, wird die Änderung gespeichert.

Laut §13:

(1) Sind Geschlechtsangabe und Vornamen einer Person nach § 2 geändert worden, so dürfen die bis zur Änderung eingetragene Geschlechtsangabe und die bis zur Änderung eingetragenen Vornamen ohne Zustimmung dieser Person nicht offenbart oder ausgeforscht werden. Satz 1 gilt nicht, wenn

  1. amtliche Register oder amtliche Informationssysteme personenbezogene Daten zu dieser Person enthalten und im Rahmen der jeweiligen Aufgabenerfüllung von öffentlichen Stellen die Verarbeitung von Daten nach Satz 1 nach anderen Rechtsvorschriften erforderlich ist,
  2. besondere Gründe des öffentlichen Interesses eine Offenbarung der Daten nach Satz 1 erfordern oder
  3. ein rechtliches Interesse an den Daten nach Satz 1 glaubhaft gemacht wird.

Für mich liest sich das wie: "Wir speichern ALLES", aber ich bin kein Anwalt.

[–] yetAnotherUser@discuss.tchncs.de 1 points 3 days ago* (last edited 3 days ago) (3 children)

Können sie das theoretisch rückgängig machen? Sprich sämtliche Namens-/ und Geschlechtsänderungen für ungültig erklären?

That... doesn't seem overwhelming?

In the city council election I voted in (Germany) you had ~40 votes (don't remember the exact number) to distribute among candidates. Each party put up to ~40 candidates on the ballot and you had to distribute your vote among the candidates. You received like 10 ballots, with each party being on a separate one and had to cast your vote in an envelope with the relevant ballots.

Additionally, you can give up to 3 of your votes to any one candidate by putting a digit next to their name or just cast one party's ballot without entering anything to give one vote to each candidate on that ballot.

Sure, it sounds complicated but you received the ballots with some information two weeks before the election and were encouraged to bring them filled out to the polling station (to reduce waiting time) or register for mail-in voting. Most people probably just casted their entire vote for one party anyways.

I'm a cis guy, so feel free to ignore everything I said. Though I do want to comment because I have experienced something similar (except not in regards to gender.)

My strategy to cope with it is to take a break from whatever I was watching the instant I start experiencing this and just allow myself to feel sad for some time. I don't think ignoring these emotions helps, so I'll bury myself under a mountain of plushies until the negative feelings pass. Once I feel better I usually don't have any issues with continuing the video/movie/series and actually start enjoying it again. After all, I actually want to watch them. Also, after feeling like I'm capable of rational thought again it helps to question myself why I felt upset and to think of "counterarguments" that contradict the negative thoughts.

Your mileage may vary but it can't hurt (except momentarily) to give it a try.

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