Category Archives: Miscellaneous

The Blue Paint Red Paint Mixture Problem

Years ago (up until about the late 1990s), many job interview questions for software developer positions were puzzles and questions not directly related to coding. The main reason was that most coding involved things such as using the C language, … Continue reading

Posted in Miscellaneous

Five Cool Optical Illusions

When I was growing up, I remember my parents bought a series of books from Time-Life. Two of my favorites were “Mathematics” and “The Mind”. “The Mind” had some very cool optical illusions. Since then, cognitive scientists and artist have … Continue reading

Posted in Miscellaneous, Top Ten

The Monty Hall Problem Simulation

I don’t remember exactly when I first heard the Monty Hall problem, but I do remember being amazed. The problem goes: Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a … Continue reading

Posted in Miscellaneous

Generating Non-Transitive Dice or Spinners

Suppose you have three spinners, A, B, and C. Each spinner has four equally divided sections each with a number. Spinner A has (2, 4, 4, 9). Spinner B has (1, 3, 8, 8). Spinner C has (0, 5, 6, … Continue reading

Posted in Miscellaneous

Down Under Blackjack

I discovered a fascinating card game called Down Under Blackjack. I was in Las Vegas, speaking at a technical conference. Between conference sessions I like to take walks. On one such walk I was in the Excalibur Hotel casino area. … Continue reading

Posted in Conferences, Miscellaneous

Magnus Carlsen Retains the World Chess Championship Title

The 2018 world chess championship match finished on Wednesday, November 28. The champion, Magnus Carlsen, retained his title by defeating challenger Fabiano Caruana. The match was one of the closest in history. Carlsen, age 27, from Norway became champion in … Continue reading

Posted in Miscellaneous | 1 Comment

Confirmation Bias, Correlation and Causation, Company Diversity

I attended a talk at a technical conference recently. The talk was intended to promote workplace diversity but bad mathematics from the speaker made the talk backfire and attendees came away with a negative view of diversity rather than a … Continue reading

Posted in Machine Learning, Miscellaneous | 2 Comments