% LMex030506_4th
% Example 3.5.6 Page 181 in
% Larsen & Marx (2006) Introduction to Mathematical Statistics, 4th edition
% Written by Eugene.Gallagher@umb.edu for EEOS601 1/13/11
% http://alpha.es.umb.edu/faculty/edg/files/edgwebp.html
% St Petersburg paradox
syms y mu
int(y*exp(-y/mu)/mu,y,0,inf)
% Not working or not producing the answer in the text