In this sample we can see that typical males weigh more than typical females. Show that this is true by calculating the typical interval for each group using mean ±ADM. Type in a number only. For example, 26.2 not 26.2kg.

Typical males weigh between _
and _

Typical females weigh between _
and _

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