Show HN: Spreadsheets Cells with Uncertainty Distributions

사용자가 불확실성 분포를 직접 셀에 포함시켜 수식을 통해 불확실성을 전파하는 스프레드시트 도구를 개발했다. 이 도구는 HyperFormula를 수정한 GaussFormula 엔진을 사용해 확률 분포, 범위, 신뢰구간 기반 분포를 셀에 표현하고 샘플링 결과를 계산한다. 현재 초기 개발 단계이며, AI 개발자들이 불확실성 모델링과 시뮬레이션에 활용할 수 있는 가능성을 보여준다.

https://github.com/PragmaticMachineLearning/maybe

#spreadsheet #uncertainty #probability #gaussformula #hyperformula

GitHub - PragmaticMachineLearning/maybe: Probabilistic Spreadsheets

Probabilistic Spreadsheets. Contribute to PragmaticMachineLearning/maybe development by creating an account on GitHub.

GitHub

Calculating the probability of irregular-shaped dice (example: pigs from Pass the Pigs)

Baktash, Hossein, Nicholas Sharp, Qingnan Zhou, Alec Jacobson, and Keenan Crane. “Putting Rigid Bodies to Rest.” ACM Transactions on Graphics 44, no. 4 (2025): 1–16. https://doi.org/10.1145/3731203.

#DiceGames #Probability #GameDesign

Severe weather warnings aren’t predictions – why do we judge them as such?

The issue is not that the data is wrong, it is that probability is being treated as prediction, and then judged accordingly.

The Spinoff

The infinite monkey theorem states that if you let
a monkey hit the keys of a typewriter at random an
infinite amount of times, eventually the monkey will
type out the entire works of Shakespeare.

https://www.patreon.com/jcponce
#math #p5js #probability

Alright, future engineers!
**Mutually Exclusive Events:** Can't happen simultaneously.
Ex: Rolling a 1 AND a 2 on a single die. P(A and B) = 0.
Pro-Tip: If ME, P(A or B) = P(A) + P(B). Simple addition!
#Probability #Statistics #STEM #StudyNotes
Alright, future engineers!
The **Expected Value (E[X])** is the long-run average outcome of a random variable.
Ex: For a fair 6-sided die, E[X] = 3.5. (It's `Sum(x * P(x))`).
Pro-Tip: It's a theoretical average, not necessarily an outcome you'll see in a single trial!
#Statistics #Probability #STEM #StudyNotes

#probability : appearance of reality or truth

- French: Probabilité

- German: die Wahrscheinlichkeit

- Italian: probabilità

- Portuguese: probabilidade

- Spanish: probabilidad

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Alright, future engineers!
**Probability Mass Function (PMF)**: Gives the probability for *each specific outcome* of a discrete random variable.
Ex: Fair die `P(X=3) = 1/6`.
Pro-Tip: All `P(X=x)` values must be non-negative & sum to 1.
#Probability #DiscreteMath #STEM #StudyNotes

Alright, future engineers!
**Permutations**: ways to arrange items where order *matters*.
Ex: Arranging 3 books from 5 on a shelf: `P(5,3) = 5!/2! = 60` ways.
Pro-Tip: Think 'passcodes' or 'rankings' – each sequence is unique!

#Permutations #Probability #STEM #StudyNotes

What is a Markov Process? #reinforcementlearning #machinelearning

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