References
- Anderson , T. W. 1958 . An Introduction to Multivariate Statistical Analysis , John Wiley and Sons, Inc. .
- Feller , W. 1957 . An Introduction to Probability Theory and its Applications, Volume 1, , 2nd ed. , John Wiley and Sons, Inc. . [Additional examples of pairwise but not mutual independence appear in 3rd ed.]
- Gibbons , J. D. 1968 . “Mutually exclusive events, independence, and zero correlation,” . The American Statistician , 22 ( 5 ) : 31 – 32 .
- Hogg , R. V. and Craig , A. T. 1965 . Introduction to Mathematical Statistics, , 2nd ed. , The Macmillan Co. .