1. 12% of 47 2. a deck of card (no joker), if I turn the first two cards around, find the probability that both cards will be ace 3. flip four coins, get $1 for head and zero for tail, find the price you need to pay to play this game 4. How confident are you with the previous questions you have answered? 5. a) roll two dice, add the values, you and your component to pick a number represents the sum of two dice, which number will you pick? would you go first or second b) if the probability of getting 12 is 40% and the rest is a uniform distribution of 60%, which number would you pick now? 5. two player A, B are to play a game (7 rounds in total), the game terminates if any of the player wins 4 games. The winning probability of each player is a 1/2, find the probability that both players will be playing the 7th round.