Which sentence most clearly describes medium? O A. The presence of adventure elements in a mystery was obviously surprising O B. The story goes against peoples expectations of a typical romantic comedy O C. The plot began to drag as the story continued to introduce new characters O D. The ability to hear the character's voice through audio makes realistic,

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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

When y’all answer can y’all explain too !