blackjack ace point game

What is the probability?

52 cards, hearts, diamonds, clubs, spades. The presence of 13 on each side (ACE 1 2 3 … 10) J, Q and the king. you will receive the first two cards of the game without being replaced. A. What is the probability that both cards are queens? b. What is the probability that the first letter is 10 and the second card is a 5 or 6? C. If sampling with replacement, what would the answer in (a)? d. play blackjack, the Picture cards (jack, queen, king) are worth 10 points, and figures of the Court of Auditors is 1 or 11 points. All other cards are counted at face value. Blackjack is to achieve if your two cards total 21. What is the probability of blackjack in this problem?

a. First card being a queen: 4 / 52 cards of a second to be a Queen: 3 / 51 4 / 52 * 3 / 51 = 1 / 221 B. First card is 10: Card 4 / 52 Second 5 or 6: 8 / 51 4 / 52 * 8 / 51 = 8 / 663 hp first card is a queen: 4 / 52 cards of a second to be a queen: 4 / 52 4 / 52 * 4 / 52 = 1 / 169

Dwight Howard Ace the Black Jack: 21 points 21 rebounds