See also the following sources:

▎ENGLISH

More on the Bayes Theorem
▸ https://towardsdatascience.com/bayes-theorem-the-core-of-machine-learning-69f5703e511f

For an insight into the intuition behind the Bayes Theorem
▸ https://www.3blue1brown.com/lessons/bayes-theorem

A simple example of calculation
▸ https://towardsdatascience.com/bayes-theorem-the-core-of-machine-learning-69f5703e511f

A more complete calculation example
▸ https://www.geeksforgeeks.org/naive-bayes-classifiers/

▎日 本 語