AI engineering glossary · Statistics inference
What is randomisation?
Randomisation: Assigning experimental units to groups purely by chance. It makes the groups comparable on both measured and unmeasured characteristics on average, so differences in outcomes can be attributed to the treatment.
Randomisation: an example
Hash each user ID and send users with even hashes to version A and odd hashes to version B.
Related terms
More Statistics inference terms
- Randomised controlled trial
- Regression coefficient
- Regression to the mean
- Rejection region
- Resampling
- Sample ratio mismatch
- Sampling distribution
- Sequential testing
Where you learn it
Randomisation is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.