[機統] 求joint pdf 範圍
想請教大家一個題目
Y1和Y2是獨立的,且 1
f(y)= ---- ,y > 1 ; 0 ,o.w.
2
y
Let Y1
U = ------ , U2 = Y1+Y2
Y1+Y2
求出joint pdf
1
f(u1,u2)= --------------- , 範圍如下 : 0 , o.w.
2 2 3
u1 (1-u1) u2
範圍題目上是這樣寫的
1 1
---- < u2 , 0 < u1 < ---- and
u1 2
1 1
---- < u2 , ---- < u1 < 1
(1-u1) 2
想請問該如何求這範圍,謝謝!
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◆ From: 140.123.162.175
→
03/19 14:51, , 1F
03/19 14:51, 1F
→
03/19 15:17, , 2F
03/19 15:17, 2F
→
03/19 15:17, , 3F
03/19 15:17, 3F
推
03/19 16:26, , 4F
03/19 16:26, 4F
→
03/19 16:26, , 5F
03/19 16:26, 5F
推
03/19 16:28, , 6F
03/19 16:28, 6F
→
03/19 16:28, , 7F
03/19 16:28, 7F
推
03/19 19:52, , 8F
03/19 19:52, 8F
→
03/19 19:52, , 9F
03/19 19:52, 9F
→
03/19 19:54, , 10F
03/19 19:54, 10F
→
03/19 19:55, , 11F
03/19 19:55, 11F
→
01/02 15:42,
5年前
, 12F
01/02 15:42, 12F
→
07/07 11:58,
4年前
, 13F
07/07 11:58, 13F
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