【正文】 terchanging what we have defined to be a success and a failure, thereby changing p to a value close to 0. 524 After school extend ? 關(guān)于 shipping相關(guān)材料補(bǔ)充 ? Dealers in the modity exchanges can either buy for immediate delivery(“spot”or “cash”) or forward delivery in, say, three months’ time. Forward delivery is known as a future contract. In the simplest case, when price are rising, you can buy for immediate delivery and sell forward。 ? segment(段，節(jié)，片斷，分割 )。德 ? x=number of successes。根據(jù)美國(guó) 1980和 1990年代兩次經(jīng)濟(jì)蕭條時(shí)期的經(jīng)驗(yàn)，目錄銷(xiāo)售和倉(cāng)儲(chǔ)超市是兩種能夠在經(jīng)濟(jì)不景氣中唯一取得成功的零售業(yè)形式。 a motor vehicle. ? 機(jī)動(dòng)車(chē)輛；汽車(chē)：一種裝有輪胎的自行驅(qū)動(dòng)的交通工具；機(jī)動(dòng)車(chē)輛 ? （ 3） A medium through which something is transmitted, expressed, or acplished: ? 傳播媒介：用來(lái)傳遞、表達(dá)或完成某物的工具或手段： ? Eg. His novels are a vehicle for his political views. 他的小說(shuō)是傳達(dá)他的政治觀點(diǎn)的媒介 511 Vocabularies ? wear ? 磨損 ? 常與 away, down 或 off一起使用 ： Eg. rocks worn away by the sea。它是島上最重要的城市和有名的海濱勝地。人口 20,368。 shoes worn down at the 巖石；跟部磨損的鞋子 ? involve ? 含有，包括；使參與；影響； ? be involved in 包含在 ...。隨著國(guó)際互聯(lián)網(wǎng)的出現(xiàn)，目錄銷(xiāo)售已經(jīng)從郵寄印刷品發(fā)布商品信息發(fā)展成為利用因特網(wǎng)進(jìn)行在線(xiàn)商品信息傳播的方式。 nx=number of failures。查普蘭勘探了這個(gè)地區(qū)， 1724年英國(guó)人在該地區(qū)永遠(yuǎn)定居了下來(lái)。 ? strech(伸展、一段路程、時(shí)間 )。 then, provided the cost of warehouseprofit, of course, this is not possible when prices are falling. 524 After school extend ? (1)dealer ? ① 經(jīng)銷(xiāo)商 ,通常與廠商有密切聯(lián)系 ,也可指證券、外匯及黃金市場(chǎng)上的交易商、交易人、經(jīng)紀(jì)人等； (speculative dealer交易所投機(jī)商 ) ? ② 以某種方式待人的人； double dealer表里不一的人 。 customers are satisfied with your last shipment. ? (7)shipping n. 海運(yùn) ? Eg. Shipping instruction 裝船要求； shipping advice 裝船通知； shipping documents 裝船單據(jù)； shipping space 艙位 ? (8)shipper 53 The Normal Probability Distribution ? 531 Vocabularies 詞匯 ? 532 Main Content 主要內(nèi)容 ? 533 Terminologies 專(zhuān)業(yè)詞匯 ? 534 After school extend 課外擴(kuò)展 531 Vocabularies ? highlight ? n.(1)An area or a spot in a drawing, painting, or photograph that is strongly ：素描、油畫(huà)或照片中得到最大量光照的一點(diǎn)或一片 ? (2)An especially significant or interesting detail or event.最重要的或最有趣的細(xì)節(jié)或事件 ? v.(1)To make prominent。 f x nx n x p px n x( ) !! ( ) ! ( ) ( )? ? ? ?1( , ( 1 ) )x N n p n p p?Example 假定歷史經(jīng)驗(yàn)表明，某公司發(fā)票出錯(cuò)的概率為 10%。 ? (2)；路邊服務(wù)式的 (飯店、電影院等 )。 ? 1/? = the mean time between events (??0). 0,)( ?? ? xexf x??? Relationship between the Poisson and Exponential Distributions 泊松分布描述特定時(shí)間或空間間隔中，事件發(fā)生的次數(shù)服從的分布 (If) the Poisson distribution provides an appropriate description of the number of occurrences per interval (If) the exponential distribution provides an appropriate description of the length of the interval between occurrences () !x efx x?? ??Example 假設(shè) 1小時(shí)內(nèi)到達(dá)洗車(chē)行的汽車(chē)數(shù)服從泊松分布，均值為每小時(shí)10輛。試求 ? 1）為發(fā)現(xiàn)一例患色盲者，至少要檢查 25個(gè)婦女的概率。s use of a coded ：銀行使用的能對(duì)委托人持用的有密碼的卡片作出反應(yīng)并自動(dòng)進(jìn)行個(gè)人財(cái)產(chǎn)交易的機(jī)器 ? (4)A person appointed to count votes in a legislative ：被指派在議會(huì)中數(shù)票的人 541 Vocabularies ? teller ? automatic(al) teller 銀行自動(dòng)機(jī) ? coupon teller 息票付款員 ? deposit teller 收款員 ? discount tellers 貼現(xiàn)人員 ? exchange teller 匯兌員 , 匯兌股人員 ? moisture teller 水分快速測(cè)定儀（ moisture 潮濕，濕氣） ? note teller (銀行 )票據(jù)員 ? paying teller 付款員 ? receiving teller 收款員 541 Vocabularies ? interval ? （ 1） A space between two objects, points, or units. ? 間隔，空隙：兩上物體、點(diǎn)、或構(gòu)件之間的空間 ? （ 2） Mathematics A set of numbers consisting of all the numbers between a pair of given numbers. ? 【 數(shù)學(xué) 】 區(qū)間：由一對(duì)已知數(shù)之間所有數(shù)組成的一組數(shù) ? A set of numbers consisting of all the numbers between a pair of given numbers and including the called ? closed interval 閉區(qū)間 ? A set of numbers consisting of all the numbers between a pair of given numbers but not including the called ? open interval 開(kāi)區(qū)間 542 Main Content ? the uniform probability distribution ? Where: f(x)=value of the density function at any x value。 ? 采用正態(tài)近似 ? 計(jì)算概率 1 2 ( 1 0 0 1 2 )1 0 0 !( 1 2 ) 0 . 1 ( 1 0 . 1 )1 2 ! ( 1 0 0 1 2 ) !f????21 0 0 0 . 1 1 0 , ( 1 ) 1 0 0 ( 1 0 . 1 ) 9 01 0 0 0 . 1 1 0( 1 0 , 3 )( 1 ) 1 0 0 0 . 1 ( 1 0 . 1 ) 3n p n pnpxNn p p?s? ? ? ? ? ? ? ?? ? ? ??? ? ? ? ? ? ?， 滿(mǎn) 足 條 件 ?；瘜W(xué)工業(yè)為其經(jīng)濟(jì)的主要支柱。a fair [plain] dealer 行為正直的人 ? (2)modity exchanges 商品交易 (所 ) ? (3)forward delivery (外貿(mào) )遠(yuǎn)期交貨 (shortdelivery 的對(duì)稱(chēng) ) ? Eg. Both cash and forward oil showed large losses in the market by the end of morning. 早市結(jié)束時(shí)現(xiàn)貨和期貨的石油價(jià)格下跌很多。 ? acme(頂點(diǎn)、極致 )。該州首府為蒙彼利埃，伯林頓是最大的城市。 q=1p= probability of a failure !( ) ( 1 ) ! ( ) !xnnx n x x n xP x C p p p qx n x??? ? ? ? ? ??(3)Formularexercise ? A study by the International Coffee Association found that 52% of the . population aged 10 and over drink coffee. For a randomly selected group of 4 individuals, what is the probability that 3 of them are coffee drinkers? Number Proportion Coffee drinkers (x) 3 .52 Noncoffee drinkers 1 .48 Totals 4 So, p = , (1 – p) = , x = 3, (n – x) = 1 . (3)Formularexercise ? To solve the problem, we substitute: ( ) ( 1 )! ! ( ) !4! 31( 3 ) ( .52 ) ( .48 )3 ! ( 4 3 ) ! 4 ( .140 608 ) ( .48 ) .269 967 00xnx n xP x C p pn x n xpqx n xP?? ? ??? ? ??????? ? ???512 Main Content ? (4)Using the binomial distribution table ? An Example Worked with Tables An Example Worked with