Add lec 3

Author: 22anirudhk

_modules/week-02.md

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+---
+title: Week 2
+---
+
+Tue Jan 27
+: **Lecture 3**{: .label .label-lecture }  Machine Learning Mechanics - Terminology and Techniques: [PDF](https://drive.google.com/file/d/1COKRZ917r0pTQUFaYA-xO-ZDfN1nuTbn/view?usp=drive_link){:target="_blank"} [Slides](https://docs.google.com/presentation/d/1GIqx6FuVDMHQH3sZuIDkXCPOaGGE5LwJ/edit?slide=id.p1#slide=id.p1){:target="_blank"}