I need help with math I'm online and I need to do a vote so here's the question (if you cant answer comment) If you could pick 1 of these candy bars which one would you do kit-kat, Hersey, Twix, Milkyway, Snickers, 100 grand, or reeses?

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