6th grade math , help me please
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Mathematics, 21.06.2019 17:20
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 driverβs airplane. find var(y) for y as given in the problem
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Mathematics, 21.06.2019 21:30
For the inequality |c| < |d| to be true, which of the following must be true?
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Mathematics, 22.06.2019 02:30
The gdp is $1,465.2 billion. the population is 249,793,675. find the per capita gdp.
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