統(tǒng)計是在初中數(shù)學統(tǒng)計初步的深化和擴展,本講的主要內容是隨機抽樣的方法在總體中抽取樣本。
預測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),以實際問題為背景,綜合考察學生學習基礎的知識、應用基礎知識、解決實際問題的能力;
(2)熱點是隨機抽樣方法中的分層抽樣、系統(tǒng)抽樣方法。
4.能通過試驗、查閱資料、設計調查問卷等方法收集數(shù)據(jù)。
3.在參與解決統(tǒng)計問題的過程中,學會用簡單隨機抽樣方法從總體中抽取樣本;通過對實例的分析,了解分層抽樣和系統(tǒng)抽樣方法;
2.結合具體的實際問題情境,理解隨機抽樣的必要性和重要性;
1.能從現(xiàn)實生活或其他學科中提出具有一定價值的統(tǒng)計問題;
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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