AB-testing is a topic of its own. One could easily make a whole course on running and analysis of AB-tests. It’s an art, it’s a science, it’s a craft. Before we dive into AB-tests specifics let’s make sure we have everything sorted with how AB-testing works, its terms, and definitions.
AB-test
Running an AB-test means to have multiple versions of the same feature live on the website or in the app. It could be a page/screen or the whole flow like an onboarding. Different users will be randomly assigned to different versions of a feature. That...
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About SQL Habit
Hi, it’s Anatoli, the author of SQL Habit. 
SQL Habit is a course (or, as some of the students say, “business simulator”). It’s based on a story of a fictional startup called Bindle. You’ll play a role of their Data Analyst
and solve real-life challenges from Business, Marketing, and Product Management.
SQL Habit course is made of bite-sized lessons (you’re looking at one atm) and exercises. They always have a real-life setting and detailed explanations. You can immediately apply everything you’ve learned at work. 