Explain how to solve the problem over experimental probability. John made 14 out of 18 free throws. If he was to take another free throw what is the probability that he makes the next free throw? (solve and explain, put as % answer)

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

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?