Correlation and Regression
Pearson's Correlation Coefficient
- http://faculty.vassar.edu/lowry/corr_stats.html
- http://faculty.vassar.edu/lowry/corr_big.html
- http://www.fon.hum.uva.nl/Service/Statistics/Correlation_coefficient.html
- http://department.obg.cuhk.edu.hk/researchsupport/pearsoncorrelation.asp
Spearman's Correlation Coefficent – Rank Correlation
- http://www.fon.hum.uva.nl/Service/Statistics/RankCorrelation_coefficient.html
- http://faculty.vassar.edu/lowry/corr_rank.html
- http://department.obg.cuhk.edu.hk/researchsupport/Spearman.asp