1. The probability of getting a total of 19 between two cards in black jack is about 54%. I found that the king, queen, jack, ten, nine, eight and ace can all be used to get 19 adn since there are four suites of each i multiplied seven by four to get 28 and i divided that by 52, the total cards in a deck.
2.There are three ways to get seven from a six sided dice and only one way to get 11 so i added the three and the one to get four and then divided four by the total 12. 4/12=.33~33%
3. the probability of landing on a black and a four in a roulette wheel is 50%. because the black numbers add up to 18 and so do the red numbers add those together which equals 36. 18/36 =.5