I forgot to mention in Support the MySQL Community Photo Day that PrimeBase Technologies is providing 3 prizes for the best photos uploaded.
| First Prize |
| Second Prize |
| Third Prize |
So, take your photo with other community supporters — they’ll also be wearing their open source t-shirts. You can upload photos to www.flickr.com/groups/mysqlcommunityphotoday .
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.
