Last year over 13,000 students took an entrance exam at a certain state university. Yoko's score was at the 42 percentile. Rafael's score was at the 17" percentile. (a) Which of the following must be true about Yoko's score? X ? O Yoko got about 42% of the questions correct. O Yoko's score was in the top half of all scores. O Yoko missed 58 questions. O Yoko scored lower than about 58% of the students who took the exam. (b) Which of the following must be true about Yoko's and Rafael's scores? O Yoko answered 25 more questions correctly than Rafael. O Rafael answered 25 more questions correctly than Yoko. O Both Yoko and Rafael scored above the median. O Both Yoko and Rafael scored below the median