Data Science

Day Of The Week Analysis in SQL

How to break down user activity by day of the week in SQL

Financial Forecasting 101: Why, When, And How

How and when to apply revenue forecasting for data…

User Engagement and Activity Histogram Analysis

User engagement and frequency of usage analysis using…

5 Mistakes To Avoid When Running A/B Tests

Common product test mistakes and a practical guide for…

How To Create Date Series in SQL

Advanced SQL challenge on how to generate a time series in Postgres…

Correlation Analysis 101 in Python

How to read and run correlation plots in Python Pandas

Generating a Word Cloud In Python

Learn how to make a word cloud for text analysis

How Improving User Engagement and Retention Drives Revenue

Case study: how increasing user activity…

SQL Date-Time Cheatsheet

A short guide to steps, solution, and must-know terminology

What Do Exactly Data Analysts Do?

An overview of data analytics job titles, requirements, and…