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An engineer wanted to determine how the weight of a car affects gas mileages. The following data represent the weight of various cars and their gas mileage.
Car weight pound miles per gallon
A 3590 18
B 2690 26
C 3180 23
D 3565 20
E 3680 19
(a) Compute the linear correlation coefficient between the weight of a car and its miles per gallon. r = (.......) (Round to three decimal places as needed)
(b) Comment on the type of relation that appears to exist between the weight of a car and its miles per gallon based on the scatter diagram and the linear correlation coefficient.
Excel Solver-maximize annual passenger-carrying capability, An airline owns an aging fleet of jet airplanes. It is considering a major purchase of up to 17 new model 7a7 and 7b7 jets. The decision must take into account numerous cost and capabilit..
the manager of a store found 72% shoppers who taste free food will buy the item. what is the expected number of shoppers that will buy if a random sample of 50 shoppers taste free?
Evaluate the number of ways between two town from the word problem - How many ways are there to go from A to C?
Suppose (V, | * |) is a normed space. If x, y E V and r is a positive real number, show that the open r-balls Br(x) and Br(x + y) in V are homeomorphic.
A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount of money in the cash register is 640 dollars. How many ten's are in the cash register?
Write a java program to accept marks in 4 subjects, find the average and display the grades. 85 -S
pre- study scores versus post- study scores for a class of 120 college freshman english students were considerated. the
Law of sines.
What is the average cost of equity funds (i.e. retained earnings and new equity) required for this round of financing?
Which normal distribution has a wider spread: Distribution A with a mean of one and a standard deviation of two, or Distribution B with a mean of two and a standard deviation of one? Explain your answer.
Martin just finished working on a job in which he spent 7 hours on Monday doing prep work and 8.5 hours on Wednesday painting. How much money doe John owe him?
A textbook store sold a combined total of 432 math and physics textbooks in a week. The number of math textbooks sold was three times the number of physics textbooks sold. How many textbooks of each type were sold?
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