> For the complete documentation index, see [llms.txt](https://jongs-organization.gitbook.io/da-skills-methods/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis.md).

# Statistics for Data Analysis

- [1. Grubbs Test](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/1.-grubbs-test.md)
- [2. Z-SCORE](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/2.-z-score.md)
- [3. ROBUST Z-SCORE](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/3.-robust-z-score.md)
- [4. IQR METHOD](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/4.-iqr-method.md)
- [5. Kurtosis and Skewness](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/5.-kurtosis-and-skewness.md)
- [6. A/B test](https://jongs-organization.gitbook.io/da-skills-methods/statistics-for-data-analysis/6.-a-b-test.md)