What to do if the motivation is over? Why is it not always bad to not understand something? Why do you need time management? Here is what I have to say.

There is an opinion that people in tech are not very sociable. But to move forward, this skill is one of the required ones.

Python is often used by data analysts. For better performance, it has extensions - libraries, and sets of ready-made tools for more efficient work.

Decision trees have been used in various areas from customer service to machine learning. Let's talk about what problems this method solves in data analysis and how to build a decision tree.

Data analysis is based on operations on sets. The simplest of these are intersection and union. Let's repeat what these operations are and what properties they have.

Often data is a large array of disparate information. For their grouping and subsequent analysis, a special method is used - clustering.