http://www.stat.lsu.edu/faculty/moser/exst7037/exst7037.html

http://www.google.com/search?q=normal+applied+multivariate+answer+johnson+wichern+&btnG=Search&hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial

http://faculty.chicagogsb.edu/ruey.tsay/teaching/ama/

http://www.public.iastate.edu/~kkoehler/stat501/stat501.html

http://ftp.sas.com/samples/A56903

http://personal.kenyon.edu/hartlaub/MellonProject/Bivariate2.html

http://aix1.uottawa.ca/~mat4375/Solutions/hw2q427.lst