You are heading to the LLN Casino and plan to play their world famous slot machine. The slot machine at the LLN Casino has three independent wheels that spin when you pull the lever. When pulled, each wheel spins and stops on one of the symbols. Assume that the outcome of each wheel is independent of the outcomes of the other 2 wheels. SEOT WIN WIN TIR co rOR NCKPOT JACKPOT RAR 7 Each wheel has 10 equally likely symbols: 4 Skulls, 3 Lemons, 2 Cherries, and 1 Bell. One symbol appears on each wheel (3). If you play, what is the probability that: You get at least one skull ? Report your answer to 3 decimal point accuracy. (e.g. 0.201) Do not report as a percent.

A bag contains 16 red coins, 8 blue coins, and 8 green coins. A player wins by pulling a red coin from the bag. Is this game fair?

A lock consists of 3 dials, where each dial has 4 letters. What is the probability of guessing the right combination in one try? Kay has an 80% probability of making a free-throw in basketball, and each free-throw is independent. Kay gets to take 2 free-throws and must make both to win the game. What is the probability that Kay's team will win the game? Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50) Val weighs 100 cows and gets an average weight of 1,420 pounds (stdev 50)   What is Jo’s margin of error, rounded to the nearest whole number? (The formula is )