Distribution
Tilda ~ is used in that way means “is distributed as”
Two rules
Distributions
Uniform distribution
Normal distribution
Bernoulli Distribution
Poisson distribution
Binomial Distribution
Beta Distribution
Empirical Distribution
Gamma Distribution
Normal Gamma Distribution
Dirichlet distribution
Hypergeometric Distribution
Multinomial Distribution
F Distribution
Categorical distribution
NIW
NIG
Multinomial distribution
Exponential distribution
Erlang distribution
Maxwell–Boltzmann distribution
Distributions Notion
Transforming Measurement Data Distributions
Transforming Categorical Data Distributions into Frequencies, Proportions, Marginals
Probability distribution metrics
Why are probability distributions denoted with a tilde?
What is the meaning of the tilde when specifying probability distributions? For example:
$$Z \sim \mbox{Normal}(0,1).$$
https://stats.stackexchange.com/questions/41306/why-are-probability-distributions-denoted-with-a-tilde
Probability distribution - Wikipedia
In probability theory and statistics, a probability distribution is the mathematical function that gives the probabilities of occurrence of different possible outcomes for an experiment. It is a mathematical description of a random phenomenon in terms of its sample space and the probabilities of events (subsets of the sample space).
https://en.wikipedia.org/wiki/Probability_distribution

Seonglae Cho