Listed below are amounts of bills for dinner and the amounts of the tips that were left. One might think that as the amount of the bills change, the tips might change also. Compute the sample correlation coefficient for this data. Show the calculation or calculator function that you use. Bill ($) 33.46 50.68 87.92 98.84 63.60 107.34 Tip ($) 5.50 5.00 8.08 17.00 12.00 16.00

Write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

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 np3 /nc2 = 6, find the value of n