Question: In the game blackjack or 21, the attempt is to get cards that add up to 21. All cards are face value, 2,3,4,5,6,7,8,9,10, except J, Q, K are all 10, and an ace can be 1 or 11. At a table in Las Vegas, it is common to use seven decks of cards, to eliminate car counting. The dealer deals one card, face down, to each player, including the dealer. Every other after that, is dealt face up. Robert LeRoy Parker a.k.a Butch Cassidy is the only player, other than the dealer. Butch looks to find his face down card is a king. He gets the first face up card. He assumes the dealer’s face down card is not an ace, what is the probability that Butch\\\'s face up card will be an ace, for a win and a Black Jack?\\r\\n  Edit