作者查詢 / loveliver
作者 loveliver 在 PTT 全部看板的留言(推文), 共756則
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1F推:如果σ=1, 卡方(2)01/20 23:36
2F推:第四題是題目打錯嗎...01/20 17:54
1F推:允差?01/08 23:03
8F推:推~年經題可以m一下01/08 23:08
3F推:1.f(y)=e^(-1),Y~exp(1) 2.(a) E(X|Y=y)=y01/03 18:56
4F→:2.(b)E(X)=E(Y)=1/1=101/03 18:57
5F→:好像是這樣XD 參考就好...01/03 18:58
6F推:2.(c)V(X)=V(E(X|Y))+E(V(X|Y))=V(Y)+V(E)=1/1^2+1/1=201/03 19:01
7F推:寫錯 V(Y)+V(Y)=2V(Y)=2*(1/(1^2))=2 #01/03 19:06
675F推:作業研究大超威~~~01/01 02:38
31F推:推仙劍 十里坡劍神魂~~~~~12/22 16:13
3F推:是ANDY哥12/13 18:53
10F推:V(Y)=E(Y^2)-[E(Y)]^2 不需要多平方12/12 12:53
19F推:偶們滴數學老ㄙ時常請假03/23 14:49