This package can visualize binomial, poisson, normal and student's T distributions; and calculate their probability mass or density function along with their cumulative probability. The documentation and API reference are availble here: https://tmtsmrsl.github.io/stats_tm_docs.html
The objective of this project is to apply object-oriented programming, unit test, exception handling, code documentation, and a bit of math. No external statistics library is used, so the unit test is crucial to make sure all of the formulas were written correctly. This video how to install and use the package, and also the explanation of the code.