Optimal Blackjack strategy ??

[edc]

Can someone post the statistical method for determing when online blackjack is probably dishonest? Also could someone post the method for determing the standard deviation for roulette when betting red-black;odd-even- and; a given number. And the standard deviation for craps when taking two times odds on a pass bet. I tried a method for roulette in Mason Malmuths book on gambling theory that showed a very small chance the results were by chance. I only used about fifty five spins so this was probably within the std dev.