..工數機率請教 - 考試
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By Olga
at 2013-10-03T01:56
at 2013-10-03T01:56
Table of Contents
※ 引述《idh491 (MIKL)》之銘言:
: [課業] 國考課業相關問題,非歷屆考題的討論,如學理觀念的釐清。
: 有高手可以解說一下如何解嗎?搞不清楚積分上下限???感謝
: http://ppt.cc/97A5
: http://ppt.cc/uJOm
只算第一題 我愛睏了..
cdf法:
√y
F(y)=P(Y≦y)=P(X^2≦y)=P(-√y≦X≦√y)=∫ 1/2 dx
-√y
f(y)=F'(y)= 1/4√y - 1/2 * (-1/2√y) = 1/2√y ; 0<y<1
你用的書.. 錯很多
--
: [課業] 國考課業相關問題,非歷屆考題的討論,如學理觀念的釐清。
: 有高手可以解說一下如何解嗎?搞不清楚積分上下限???感謝
: http://ppt.cc/97A5
: http://ppt.cc/uJOm
只算第一題 我愛睏了..
cdf法:
√y
F(y)=P(Y≦y)=P(X^2≦y)=P(-√y≦X≦√y)=∫ 1/2 dx
-√y
f(y)=F'(y)= 1/4√y - 1/2 * (-1/2√y) = 1/2√y ; 0<y<1
你用的書.. 錯很多
--
Tags:
考試
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By Lydia
at 2013-10-07T09:40
at 2013-10-07T09:40
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