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試卷名稱：112年 - SOCIETY OF ACTUARIES_EXAM P PROBABILITY_EXAM P SAMPLE QUESTIONS 151-200#119924
年份：112年
科目：Exam P：Probability機率
173. Let N denote the number of accidents occurring during one month on the northbound side of a highway and let S denote the number occurring on the southbound side.
Suppose that N and S are jointly distributed as indicated in the table.
Calculate Var (N | N + S = 2).
(A) 0.48
(B) 0.55
(C) 0.67
(D) 0.91
(E) 1.25
