[機統] 期望值
Let X_1, X_2, ..., X_n be independent and identically distributed positive
ramdom variables. Find the expectation of
X_1 + X_2 + ... + X_k
──────────────
X_1 + X_2 + ... + X_n
for k≦n.
請問這題要怎麼做?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 128.12.117.138
→
02/13 11:03, , 1F
02/13 11:03, 1F
→
02/13 11:04, , 2F
02/13 11:04, 2F
→
02/13 11:05, , 3F
02/13 11:05, 3F
→
02/13 11:06, , 4F
02/13 11:06, 4F
討論串 (同標題文章)