https://angeloyeo.github.io/2021/04/23/binomial_distribution_en.html
https://angeloyeo.github.io/2021/04/26/Poisson_distribution_en.html
https://angeloyeo.github.io/2020/09/14/normal_distribution_derivation_en.html
https://angeloyeo.github.io/2020/09/14/normal_distribution_derivation_en.html
Bla bla