To determine the percentage of students interested in volunteering for a
holiday food drive, Franklin High School conducts a phone survey of all
currently enrolled seniors. This is an example of -
A. displaying data
O
B. data collection
O
C. inferential statistics
O
D. descriptive statistics

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

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