answers for :1) Sarah has (15-30) coins in a bag. There are (5-10) silver coins. What are the odds against her picking a silver coin? 2) Using the same numbers as question 1, what is the probability of picking two silver coins in a row?

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?