1. from: https://github.com/AllenDowney/ThinkStats2

1.  thinkstat2.py       line 2643

type_map = dict(byte=int, int=int, 
long=int, float=float, double=float)

{'int': <type 'int'>, 'double': <type 'float'>, 
'byte': <type 'int'>, 'float': <type 'float'>, 
'long': <type 'int'>}

1. Instead, a better approach is to spend time selectively, memorizing a small set of representative ideas while developing strategies on how the ideas relate and how to use the stored information. In this way, large ideas can be understood without needing to memorize them by rote.
2. The process of fitting a model to a dataset is known as training. When the model has been trained, the data is transformed into an abstract form that summarizes the original information.

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