An Intermediate Course in Probability 上的两道题

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

想不通答案，希望有高人能够解释下。
An Intermediate Course in Probability，第一章，problem, 14, 15. 先谢谢了

14. Suppose that X ~ Exp(1), let Y be the integer part and Z the fractional
part, that is, let
Y = [X] and Z = X − [X].
Show that Y and Z are independent and find their distributions.

15. Ottar jogs regularly. One day he started his run at 5:31 p.m. and returned
at 5:46 p.m. The following day he started at 5:31 p.m. and returned at
5:47 p.m. His watch shows only hours and minutes (not seconds). What
is the probability that the run the first day lasted longer than the run the
second day?

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏0 回帖

关键词：intermediate intermediat Probability bability Ability Probability Course intermediate