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 title: An Introduction to the Statistics Tools RooFit, RooStats, and combine
 ---
-> ## Reference Materials
+> ## Reference Material
 > - [Combine Manual](https://github.com/cms-analysis/HiggsAnalysis-CombinedLimit/wiki)
 > - [Combine Tutorial at LPC](https://indico.cern.ch/event/747340/timetable/)
 > - [Practical Statistics for LHC Physicists](https://indico.cern.ch/event/358542/) - Three CERN Academic Lectures by Harrison Prosper