[ QUOTE ]
Which has a greater risk of ruin?
a) 1/30 of your bank-roll even money flips w/ a coin that gives you a 75% edge
b) 1/100 of your bank-roll even money flips w/ a coin that gives you a 51% edge
[/ QUOTE ]
a)& b) Std. Dev = 1 a) (75-25)/100 EV=0.5 b) 51-49/100 EV=0.02
Calculated at:
http://www.poker-tools-online.com/riskofruin.html
a) 0.000000%
b) 1.831564%
But of course, you provide a skewed example.