Last year over 12,000 students took an entrance exam at a certain state university. Carmen's score was at the 43 percentile. Joe's score was at the 36 percentile. (If necessary, consult a list of formulas.) (a) Which of the following must be true about Carmen's score? X ? O Carmen got about 43% of the questions correct. O Carmen's score was in the top half of all scores. O Carmen missed 57 questions. O Carmen scored lower than about 57% of the students who took the exam. (b) Which of the following must be true about Carmen's and Joe's scores? O Carmen answered 7 more questions correctly than Joe. O Joe answered 7 more questions correctly than Carmen. Both Carmen and Joe scored above the median. O Both Carmen and Joe scored below the median