 In the third part , Bernoulli applies the probability techniques from the first section to the common chance games played with playing cards or dice . Interestingly , he does not feel the necessity to describe the rules and objectives of the card games he analyzes . He presents probability problems related to these games and , once a method had been established , posed generalizations . For example , a problem involving the expected number of " court cards " — jack , queen , and king — one would pick in a five @-@ card hand from a standard deck of 52 cards containing 12 court cards could be generalized to a deck with a cards that contained b court cards , and a c @-@ card hand . 
