Jon Molnar will graduate from Carolina Forest High School this

year. He took the American College Test (ACT) for college admission and

received a score of 30. The high school principal informed him that

only 2 percent of the students taking the exam receive a higher score.

The mean score for all students taking the exam is 18.3. Jon s friends

Karrie and George also took the test but were not given any information

by the principal other than their scores. Karrie scored 25 and George

18. Based on this information, what were Karrie s and George s

percentile ranks?

Assume that the distribution of scores follows the normal distribution.