二項分布・ベルヌーイ分布・幾何分布

二項分布 (Binomial distribution)
https://to-kei.net/distribution/binomial-distribution/

ベルヌーイ分布 (Bernoulli distribution)
https://to-kei.net/distribution/bernoulli-distribution/ber-parameter-derivation/

幾何分布 (Geometric distribution)
https://to-kei.net/distribution/geometric-distribution/geometric-distribution-mean-ver/