This list consists of ~25 tutorials and hands-on assignments to learn data science. You can think of this list as a "Free Online Nano Book". You'll learn core data science concepts, algorithms and applications. All tutorials are free. You need to upgrade to Pro to access quizzes and assignments.
Trillions of gigabytes of data is being produced yearly, and the number is still growing exponentially. It is estimated that for every person, 1.7 megabytes of data will be produced every second by 2020.
Our society is increasingly becoming data dependent. Data is only a raw material and extracting information from it requires further work. Data Science helps us make sense of data.
Data Science is an interdisciplinary field, and makes use of methods and technologies from different fields such as computer science, databases, mathematics, statistics and machine learning. It is involved with the collection, preparation, analysis, visualization, management and preservation of data.
Related: If you'd like to be hands on while learning and solve Data Science problems using Python, see the Learn Data Science with Python course.
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An introduction to data science - what it is and examples of data science around us. The introduction article also introduces key components of data science, namely - programming, data, statistics, machine learning and big data.
The first three tutorials are a review of various topics in mathematics that data science relies on - linear algebra, statistics and probability. In the last tutorial, we will discuss Hypothesis Testing. Hypothesis Testing is probably the most common use of Data Science. Given multiple options (say different drugs for a disease, or different user interface for a website), it allows us to pick which one is better and by how much.
In this section, we'll introduce machine learning and take a look at a number of machine learning algorithms. Algorithms will include regression, classification and clustering algorithms commonly used in data science projects. We'll also introduce recommendation systems (such as those used by Netflix and Amazon).
