Beta Distribution

Cố hiểu Beta Distribution, tạm thời mới hiểu 1 ít nên note lại.

Đầu tiên là ý nghĩa, ứng dụng của nó
In Bayesian inference, the beta distribution is the conjugate prior probability distribution for the Bernoulli, binomial and geometric distributions. For example, the beta distribution can be used in Bayesian analysis to describe initial knowledge concerning probability of success such as the probability that a space vehicle will successfully complete a specified mission. The beta distribution is a suitable model for the random behavior of percentages and proportions.

Công thức thì ở link này rất rõ ràng, dễ hiểu:
http://thirteen-01.stat.iastate.edu/wiki/stat341/files?filename=2009-04-03h.pdf

Tạm thế đã, tối đọc tiếp paper

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