Epsilon: More Probability Distributions

[streydog]

Problem you'd like to fix

There a a few probability distributions that are missing from the probability app, such as a t distribution and chi^2 distribution. These are needed for things such as the AP Statistics exam in the US.

Describe the solution you'd like

The solution would be to add t and chi^2 probability distributions to the probability app, and the ability to scroll to select them in the main page of the probability app.

[JohnRosner]

I would also like to see a geometric distribution added to the probability app

[XanderLeaDaren]

The geometric distribution now appears as part of the curriculum in French Terminale: “mathématiques complémentaires“ (and may be studied as part of the “Spécialité mathématiques”) :
https://cache.media.education.gouv.fr/file/CSP/68/9/Tle_Maths_complementaires_Optionnel_Voie_G_1134689.pdf

[RubenNumworks]

Those probability distributions have been added to the master branch.