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試卷名稱：112年 - SOCIETY OF ACTUARIES_EXAM P PROBABILITY_EXAM P SAMPLE QUESTIONS 251-319#119927
年份：112年
科目：Exam P：Probability機率
257. Let X be the percentage score on a college-entrance exam for students who did not participate in an exam-preparation seminar. X is modeled by a uniform distribution on [a, 100]. Let Y be the percentage score on a college-entrance exam for students who did participate in an exam-preparation seminar. Y is modeled by a uniform distribution on [1.25a, 100]. It is given that 
.
Calculate the 
percentile of Y.
(A) 80
(B) 85
(C) 90
(D) 92
(E) 95
