The mean age of a student book club is 14.2 years. A 27-year-old teacher is
invited to join the club. How does the teacher's age affect the mean?

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

For which pair of functions is (gof)(a)=|a|-2?

What is the range for 31,39,29,34,37,24,36,33,34,28