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Objective knowledge Check
The following list gives the number of public libraries in each of 11 cities.
8, 4, 8, 5, 5, 5, 7, 4, 4, 5, 4
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Find the modes of data set

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

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