HURRY 15 points What happens to the mode of the data set shown below if
the number 20 is added to the data set?

18,24,19,21,19,19,18,20,15,26 ,25,19,17,20,24,21,26
A there is no mode
Bthe mode will not be changed
C there will be two modes
D the mode increases by 6

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