JOHN CHANHow to Determine the Sample Size of AB Test?Install the Math Everywhere Plugin to view math formulas.4 min read·Feb 26, 2024----
JOHN CHANI wouldn’t say I liked geography in secondary school.Mental Model8 min read·Feb 17, 2024----
JOHN CHANIf I were to write a practical guide on consumer loan credit risk management, this is what the…Session 1: Fundamentals Chapter 1: The Art and Science of Decision-Making Chapter 2: Fundamentals of Interest and Loan3 min read·Feb 12, 2024----
JOHN CHANThe Bias of Using Observational Data to Estimate Causal EffectPlease installed Math Everywhere Plugin to view math formula.3 min read·Jan 27, 2024----
JOHN CHANPrediction Or What If: What’s the Nature of Your Problem?With the rise of machine learning techniques, I believe we have become more susceptible to the ‘law of instrument bias.’ This principle…2 min read·Jan 10, 2024----
JOHN CHAN[Write to Learn Series] You May Not Know Linear Regression Enough!Disclaimer: The accuracy of the information in this article is not guaranteed. The methodologies discussed are conceptual and not yet…4 min read·Jan 3, 2024----
JOHN CHANJourney Through Years: Reflecting on Growth, Principles, and Future Aspirations (2024) | Data…Since the year 2020, I have shared my reflections on the year and my expectations for the upcoming one. It’s interesting to review these…4 min read·Dec 25, 2023----
JOHN CHANThe Bad Habits We Inherited From SchoolThe context for this blog post is important to grasp, so allow me to provide some background. Having graduated from University in 2017 and…3 min read·Jul 23, 2023----
JOHN CHANRevolutionizing Data Analytics with Text-to-SQL | Data Driven EverythingA significant portion of a Data Analyst or Business Intelligence Analyst’s time is spent translating business questions into SQL queries…2 min read·Apr 15, 2023----
JOHN CHANHow to Understand the Business Cycle Through Economic Indicators?We read a lot about the economy in the news. They are like data points describing the state of the economy, such as GDP, capacity…3 min read·Feb 11, 2023----