QUESTION 8 A university has made a statistical analysis of the relationship between Math SAT scores (ranging from 200 to 800) and first-year GPAs (ranging from 0 to 4.0), for students who complete the first year. The results: average SAT score = 550, SD = 80 average first-year GPA = 2.6, SD = 0.6 r = 0.6 Suppose the percentile rank of one student on the SAT is 68%, among the first-year students. This means his score is better than 68% of the students taking the test. Predict his percentile rank on first-year GPA. The scatter diagram is football-shaped. In particular, the SAT scores and GPAs follow the normal curve. His percentile rank on GPA is percent. (Round to the nearest percent, if the answer is 18.59%, enter, 19)