The MySQL Conference has started. It will be a long week, still yet to prepare my own presentation for tomorrow. Old friendships already renewed, plenty of faces to names already, and we have yet to hit the first session.
Today is tutorial day, this morning I’m with Paul McCullagh Mr PBXT in Scaling and High Availablilty Architectures by Jeremy Cole and Eric Bergen of Proven Scaling
The Chi-Squared test is one of the most widely used statistical tests for categorical data. It comes in two flavors: the goodness-of-fit test asks whether an observed frequency distribution matches an expected one, while the test of independence asks whether two categorical variables are associated with each other.
I am excited to be speaking at COSCUP 2026 in Taipei, Taiwan on August 8th and 9th. COSCUP (Conference for Open Source Coders, Users and Promoters) is one of the largest open source conferences in Asia, and it is always a privilege to present to the engaged and technically sharp community there.
The two sample t-test for equal variance is a statistical test to determine if the means of two groups are different enough that the difference is likely caused by some underlying difference, rather than random chance.
