What is the shape of the following distribution {9, 10,10,11,11,12,12,13,13,13,14,14,14 ,14,15,15,15,15,16,16,16,16,17,17,1 7,17,18,19,20}

A: negative skew
B: positive skew
C: symmetric
D: asymmetric with no skew
E: none of the above

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?