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問題的種類

英文 高中

想問為什麼17要選C不能選D

(B) “Honestis the best policy”is a saying we are all familiar with, but many of us still lie. Some lieto 11 their errors rather than admif 也em一12_,astudent is late for school because he forgets to set the alarm clock, but he claims that it does not work. Others lie 一43 一 avoid unpleasant situations. __14_, sometimes lies are told for good reasons. If your mom gets an awful haircut and asks you for your opinion, you might Say “Jt's really nice; you look ten years younger”” This type 9f lie is called a white lie_ and it 1s considered 國還說繼生bad Wwrong, since it prevents _16 feelings and reactions. Another reason we lie is to GOS3NCE人一 dangerous situation. Parents might have their children _18 that Mom and Dad are busy when they answer the phone ifastranger call while they are out. It is not always easy to _19 aspecific reason for a lie. _20 _ the reason is, We had better think twice so that w can avoid embarrassment or the Joss ofothers' trust. CC 1 (A)lead to (B) make up (C) cover up (D) result in 也12. (A) Instead (B) For example (C) What's more (D) By the way 全了珍 (A) so as to (B) in order that (C) for the purpose 0f (D) with aview to 外14. (A) Similarly (B) In contrast (C) Asaresult (D) That is 史論(人ONDUE (B) either...or (C) both...and (D) neither...nor /16. (A) marked (B) positive (C) negative (D) ftequent 17.(A) fake...o企 (B) turn...into (C) keep.,.out 9f (D) stay...away from

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數學與統計 大學

33題,有人可以幫我列算式就好嗎 是波氏分配(卜瓦松分配)題目

CHMAPTER 6 smen er replacem es, muff plecitlons w 1r 同 the numper oftransmissf sen0C7 polsson 昌關 dmwpute 4 o Shop. The! te dett Ave/lino's Aut 字 ee 3 stributlon le butlon ls the an summary, the Polsson dis 呈ty dlstob n summar OP 4 needed to construct a Poiss 4 on aa random variable, desl9! errors, or other r: ellhood t 的 elikeli nedthejkelJncoo 同 on nsurance Company ge 1 polic surar From actuary taples, Washington 2 gten nsurance aty 』 age 25 wi qie within the next year is pay ity they wi 25-year-ojg men this year' whatis the probabilty 3 JjnaPoisson distributionn 三0.4 a. What is the probapility thatx三0 b. What is the probability thatx > 0? 32. 全a Poisson distributionh 二4 a. What is the probapbility thatx 三 2? b. What js the probapbiljty thatx 生 2? f experience, c. What js the probability thatx> 2? m her years ol 還 officer at Coast Bank and Trust. Fro ble to repay 9 inot bea she estimates that the probability is .025 that an applicant wi hs or her jnstajiment loan. Last month she made 40 1 父 What js the probability that three loans will be 和 sfaulted? 紀 What js the probability that at least three loans will be del tthe rate oftwo per Automobijles arrive at the Elkhart exit ofthe Indiana Tol 同 ibution minute. Tne distribution of arrivals approximates a Poisson distri 了人 a.- What is fhe Probabifity that no automopbiles arrive in a particular uiar Pp. what js fhe Propabjlity that at least one automobile arrives during mrnute? 5 站5 estimated that 0.5% ofthe Callers to the Customer Service department of Dell Jnc. wil receive a busy signal. whatis the probability that oftoday's 1,200 callers at reast 5 received a Pbusy signal? 。 生如e past schools jn Los Angeles Couni year for weafher enmergencies. What is 1 Counfy wi close for 4 days next year? 24 ty have closed an average of 3 days each he probability that schools in Los Angeles opapjlity distribution js a !ting apjjty associated wjth each Out( discrete propapjjity distribution can aSsume only certain values. The main features are: _The sum offhes probabilties is 1.00. The probapijlity ofa particular outcome is between 0.00 and 1.00. Jheoutcomes are mutually exclusive. ontinuous djsfribution can assume an jmfnite number ofvalues within a speecsi iean and variance ofa probability distribution are Computed as follows, mean js equalto: Come- ific rang variance js egqual to:

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