ritvikmath: Dirichlet distribution
ritvikmath has already explained to us what the Beta distribution is. There is another video by ritvikmath, which explains multidimensional generalization of it. This generalization is known as Dirichlet distribution. Watch it for the data science perspective.
I myself understand Dirichlet distribution from the perspective of noisy voter model (or Kirman's model. Although I haven't explicitly mentioned it earlier, Dirichlet distribution arises from the multistate generalization of the voter model.