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[理工] [商管]交大財金統計

[ Grad-ProbAsk ]16 留言, 推噓總分: +4

作者: lyndonxxx - 發表於 2012/02/20 16:26(12年前)

1^F推AF1:第一題用三項分配 X表二出現的次數 Y表三出現的次數02/21 21:27

2^F→AF1:P(X=Y) = P(X=Y=0) + P(X=Y=1) + P(X=Y=2)02/21 21:28

3^F→AF1:貝氏那題我是寫令Yi表第i個樣本是否為不良品02/21 21:37

4^F→AF1:Yi = 1 表第i個樣本為不良品 Yi = 0 表第i個樣本非不良品02/21 21:37

5^F→AF1:取 n = 100 個樣本寫出f(y1,y2,...,y100|x)然後和題目給的02/21 21:39

6^F→AF1:f(x)相乘求出f(y1,y2,...,y100,x) 再對x積分可以得到02/21 21:40

7^F→AF1:f(y1,y2,...,y100) 然後題目要求的分配就是f(x|y1,...,y100)02/21 21:41

8^F→AF1:把兩個相除應該就是答案了@@02/21 21:41

9^F推AF1:然後由題意 y1+...+y100 = 202/21 21:44

11^F推AF1:不可能我統計頂多70@@02/22 18:45

13^F推AF1:第一我把60抄成50計算錯...11/36應該沒錯第七我忘記題目了02/23 17:02

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