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  1. 賭局規則是 賭資1元 選一個三位數 猜中可得750元 三位數從000到999共一千個 有0.999的機率失敗而損失一元 有0.001的機率成功而賺到750-1=749元 0.999* -1 + 0.001*749 = -0.25 所以期望值是負0.25元

  2. ... ... stronger than this most recent one ... can be expected . -------------------------------------------------------------------------------- Taiwan weather forecast for today and Tomorrow: clouds and intermittent rain up north...

  3. 第 1 題:A return on equity(ROE)(公司的年度營收和股本總市值的比) ROE = 15 % = 0.15 ROE 的一部份用來發放股利(pay out as dividends) 剩下的部份用來再投資成長(earnings retention ratio) 再投資成長的部份 = 40 % 發放股利的...

  4. I hope this is not the midterm of statistics class. All this questions are related to basic statistical theorem. 1. 1 that is mean 2. 3 central limit theorem 11.98 / 0.2/(sqt root 10) 3. 3 z=1(12-11.98)/ 0.2/ 10sqt root=0.032 check t-table 0.5 .016=0.516 4. 11.998 1.28*0.2/(10 sqrt...

  5. 這是蔣有關姚明的郵件 他說他以前在Houston Rockets隊待過 因為他很高 打ㄉ又不錯 所以大家就叫他小巨人 他該史學如何打籃球是在他只有9歲 載2002他加入NBA 他從來沒有錯過任何衣廠他在NBA的比賽 然後他又為他的球隊贏了不少次 再2003他回中國時遇到...

  6. ...night shift at 7-11 near school. In the future, I expect myself to successfully graduate from the university, hoping... may stand by the minority in our society to fight for justice. Thank you very much for your ...

  7. ...right track. Set realistic goals. Do not expect to remember everything. If you have memory problems...always avoid mental challenges, then it will become difficult for you to depend on your memory to solve challenging...

  8. a. P(x<9.85 , 10.15<x)標準化 = P[Z<(9.85-10)/0.15 , (10.15-10)/0.15)<Z] = P(Z<-1 , 1<Z) = P(|Z|>1) = 0.1578*2 = 0.3156 b. P(x...

  9. ...this time I find that teaching English for children is a very happy thing.Let...句,在English is the......前面加上I expect that...少了「我期許」~所以整句是I expect that...

  10. 樓上兩篇翻的都不行 我幫你翻譯吧﹗﹗ 2005-08-29 16:37:49 補充: 付小費算是一種美國的文化﹐對於那些不是很明白美國文化的外籍旅遊客﹐ 它給大部份來渡假的人帶來問題。他們不明白要付多少的小費﹐也不知道要付給誰。 有時候他們付太多的小費﹐而且付錯人。或是﹐他們沒有付任何...