Hey, I'm Tomi Mester. This is my data blog, where I give you a sneak peek into online data analysts' best practices. You will find articles and videos about data analysis, AB-testing, research, data science and more…
Humans are stupid. We all are, because our brain has been made that way. The most obvious evidence of this built-in stupidity is the different biases that our…
“How do I optimize Facebook campaigns?” This is the question that I hear all the time from clients to whom I teach Facebook marketing. Of course, it depends…
This is the second episode of my SQL for Data Analysis (for beginners) series, and today I’ll show you every tiny little detail of the SQL WHERE clause….
… is exactly the same one that many well-known startup and e-commerce companies are using. However, somehow this fundamental CRO framework hasn’t been published anywhere so far! (As…
For the record: I’m a big fan of third-party data tools (e.g. Google Analytics, Hotjar, Crazyegg, Optimizely, Google Optimize). I like them because they are easy to use…
Funnel analysis is a powerful analytics method that every online business can take advantage of. It shows the conversion between the most important steps of the user journey….
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