Good morning.. kind of stuck in this question.Your class rank in 2018 was 145 out of 435 students. In 2019 your class rank was 160 out of 404 students.A. In which year did you have the higher percentile rankingB. If you had the data on the cumulative GPA of each student at the end of the spring semester in 2018, what would the mean and and the median each tell you and how would you compute each measure?