Mathematics
Undergraduate
ここがわかりません。教えてください。確率
設問3. 確率変数Xの密度関数が
1
(x-2)?
ゆ(x) =
e
8
2V2元
で与えられる。次の問いに答えろ。
0 Xの期待値は(1)
2 Xの分散は(2)
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