Last year over12,000 students took an entrance exam at a certain state university. Bill's score was at the18

the percentile. Christine's score was at the84

th

percentile.

(a) Which of the following must be true about Bill's score?

About18 % of the students who took the exam scored lower than Bill.

Bill got about18%of the questions correct.

Bill's score was in the top half of all scores.

Bill missed82

questions.

(b) Which of the following must be true about Bill's and Christine's scores?

Both Bill and Christine scored higher than themedian.

Both Bill and Christine scored below than the median.

Christine scored higher than Bill.

Bill scored higher than Christine.