Concept explainers
Application Exercises
The Corruption Perceptions Index uses perceptions of the general public, business people, and risk analysts to rate countries by how likely they are to accept bribes. The ratings are on a scale from 0 to 10, where higher scores represent less corruption. The graph shows the corruption ratings for the world’s least corrupt and most corrupt countries. (The rating for the United States is 7. 6.) Use the graph to solve Exercises 33 –34.
a. Write a set of four ordered pairs in which each of the most corrupt countries corresponds to corruption rating. Each ordered pair should be in the form. (country, corruption rating).
b. Is the relation in a part (a) a function? Explain your answer.
c. Write a set of four ordered pairs in which corruption rating for the most corrupt countries. Each order pair should be in the form. (corruption rating, country).
d. Is the relation in part (c) a function ? Explain your answer.
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