2.4, due Friday Sep 21, 2017

Hardest part:

The most confusing part of the reading was remembering Pascal's triangle, which I completely forgot about. I also had to remember how combinations work. It's interesting, though, that I actually understand, now, how we get them rather than only that they work.

Application:

Permutations and combinations are useful in many, many scenarios. But I really like Fermat's little theorem. I'm not entirely sure how to use it yet, though. Also, the whole combinations to figure out lottery probabilities is interesting.

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