Wah-Kwan Ku·Sep 10Getting Started with Python Lists: Your First Data CollectionWhen learning Python, one of the most useful data structures to master is the list. A list is simply a collection of items stored in a…
Wah-Kwan Ku·Jul 5A Counterfeit Coin Puzzle and the Power of Logical ThinkingOne of the most valuable skills mathematics teaches is not calculation, but logical thinking: the ability to organize information…
Wah-Kwan Ku·Jun 8Game Theory for EveryoneImagine two friends, Alan and Bob, are arrested for a crime. The police separate them into different rooms so they cannot communicate. Each…
Wah-Kwan Ku·Jan 2When Good Judges Follow: A Probability PuzzleImagine a criminal appeals court with five judges — let’s call them A, B, C, D, and E. Each judge must vote to either uphold or overturn a…
Wah-Kwan Ku·Sep 1, 2025When the Data Lies: Understanding Simpson’s ParadoxLet me tell you a story about numbers behaving badly.
Wah-Kwan Ku·Jul 1, 2025Is He Really Clumsy? A Probability Puzzle with a Monte Carlo TwistLet me tell you a story that starts in a kitchen.
Wah-Kwan Ku·Jun 18, 2025Is the Other Child a Girl? A Surprising Probability PuzzleLet’s play a little probability game. Imagine you’re chatting with a woman who mentions she has two children. You also happen to know that…
Wah-Kwan Ku·May 17, 2025Cracking the Handshake Puzzle with LogicI found the following problem quite interesting.
Wah-Kwan Ku·Nov 9, 2024Stay or Switch? The Math Behind the Monty Hall ProblemThe scene is a game show. The participants are a host and a contestant. In front of them are three doors. The host explains that there is a…
Wah-Kwan Ku·Aug 5, 2024Simulating Bus Wait Times: A Monte Carlo ApproachPeter has just moved to a new city. Every morning, he can take a bus from one of two independent bus lines that stop in front of his…
