Julio is playing a game with a standard 6-sided number cube. Every time he rolls an even number, he loses $3. Every time he rolls an odd number, he wins the amount of money showing on the face. Is this a fair game? If not, explain.

Answer these questions showing your work plz

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

X+ y = 5 ; x - y =3 solve using linear combination