Glossary: Statistical Inference and A/B Testing
Chi-square statistic
Also written: χ²
The sum of (observed − expected)² ÷ expected over every cell of a table of counts. A larger value means the counts are further from what chance would give.
Glossary: Statistical Inference and A/B Testing
Also written: χ²
The sum of (observed − expected)² ÷ expected over every cell of a table of counts. A larger value means the counts are further from what chance would give.