統(tǒng)計(jì)是在初中數(shù)學(xué)統(tǒng)計(jì)初步的深化和擴(kuò)展,本講的主要內(nèi)容是隨機(jī)抽樣的方法在總體中抽取樣本。
預(yù)測2007年高考對本講的考察是:
(1)以基本題(中、低檔題為主),多以選擇題、填空題的形式出現(xiàn),以實(shí)際問題為背景,綜合考察學(xué)生學(xué)習(xí)基礎(chǔ)的知識、應(yīng)用基礎(chǔ)知識、解決實(shí)際問題的能力;
(2)熱點(diǎn)是隨機(jī)抽樣方法中的分層抽樣、系統(tǒng)抽樣方法。
4.能通過試驗(yàn)、查閱資料、設(shè)計(jì)調(diào)查問卷等方法收集數(shù)據(jù)。
3.在參與解決統(tǒng)計(jì)問題的過程中,學(xué)會用簡單隨機(jī)抽樣方法從總體中抽取樣本;通過對實(shí)例的分析,了解分層抽樣和系統(tǒng)抽樣方法;
2.結(jié)合具體的實(shí)際問題情境,理解隨機(jī)抽樣的必要性和重要性;
1.能從現(xiàn)實(shí)生活或其他學(xué)科中提出具有一定價(jià)值的統(tǒng)計(jì)問題;
56. There was ____ to prevent the accident.
A. something could do B. anything we could do
C. nothing we couldn’t do D. nothing we could do
55. This is the only one of the students whose handwriting ____ the best.
A. is B. are C. has D. have
54. That is one of those books that ____ worth reading.
A. is B. are C. has D. have
53. I don’t like ____ you speak to her.
A. the way B. the way in that C. the way which D. the way of which
52. This is the only book ____ I can find.
A. that B. which C. it D. with which
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