A poll was conducted of more than 50,000 buyers of new cars, 90 days after the cars were purchased. The data on problems per 100 vehicles for cars made by Toyota and General Motors (GM) are given in the time plot below for the years 1998-2004. The solid line is for GM and the dashed line is for Toyota.
Which of the following is a true statement?
A) The quality of cars is getting poorer for both companies.
B) The number of problems was higher for GM than for Toyota in each year.
C) The difference in the number of problems per 100 vehicles between GM and Toyota is less than 30 for each year.
D) All of the answer options are correct.
Correct Answer:
Verified
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