Add interactive axioms notebook

[Haleshot]

📝 Summary

Add Intro to axoims notebooks; showcasing rules of probability in an interactive way.

TODO:

• Fix last callout not rendering (the check answer task).

📋 Checklist

• I have included package dependencies in the notebook file using --sandbox
• If adding a course, include a README.md
• Keep language direct and simple.

[akshayka]

I like the attempt to make everything interactive and fun! But in this case, the concept of probabilities summing to 1 is simple enough that I think most of the interactive examples detract from the learning instead of adding. I think having just one interactive example for this notebook, the first one with a scale, is sufficient.

[Haleshot]

I like the attempt to make everything interactive and fun! But in this case, the concept of probabilities summing to 1 is simple enough that I think most of the interactive examples detract from the learning instead of adding. I think having just one interactive example for this notebook, the first one with a scale, is sufficient.

Made some changes accordingly. Current notebook explains the axioms with appropriate examples. Kept the first interactive example at the start (with the scale) the same.

Hope it's good now.

[Haleshot]

Closing this PR now; new one up here: #31