Last yel percentile 12,000 students took an entrance exam at a certain state university. Tammy's score was at the 83" Retentie. Greg's score was at the 45" X 2 (a) Which of the following must be true about Tammy's score? About 83% of the students who took the exam scored lower than Tommy Tommy got about 83% of the questions correct. Tammy's score was in the bottom half of all scores, Tainmy missed 17 questions (b) Which of the following must be true about Tammy's and Greg's scores? Both Tammy and Greg scored higher than the median Both Tommy and Greg scored below than the median Tammy scored higher than Greg Greg scored higher than Tammy.