[商管] 統計問題想請教...

看板Grad-ProbAsk作者sparrow620 (可遇不可求′-`y-～)時間15年前 (2010/11/13 00:40)推噓2(2推 0噓 2→)

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The demand for a particular magazine at Joe's newsstand has the following prob. distribution.... Number demand y 0 1 2 3 4 5 6 ------------------------------------------------- P(Y=y) 0.1 0.2 0.3 0.1 0.1 0.1 0.1 Joe sells this magazine for $2 a copy, for which he pays $1, and he is refunded $o.1 for each unsold copy. Suppose Joe decides to stock 3 copies of the magazine. 賣一本2塊進貨一本一塊沒賣出去的話一本可以有0.1塊的補償，假設他決定進三本假設r.v X 表示 net profits 想請問怎麼表達那個X.. 想了很久一直卡住… -- 牛頓在２３歲發明了微分學，隔年在２４歲發明了積分學。但是他害很多人在１９歲時微積分被當，到了高等微積分再次被當...Orz -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.40.203.167

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hchs31705

11/13 01:29, , 1^F

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sparrow620

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sparrow620

11/13 01:33, , 3^F

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