统计是在初中数学统计初步的深化和扩展,本讲的主要内容是随机抽样的方法在总体中抽取样本。
预测2007年高考对本讲的考察是:
(1)以基本题(中、低档题为主),多以选择题、填空题的形式出现,以实际问题为背景,综合考察学生学习基础的知识、应用基础知识、解决实际问题的能力;
(2)热点是随机抽样方法中的分层抽样、系统抽样方法。
4.能通过试验、查阅资料、设计调查问卷等方法收集数据。
3.在参与解决统计问题的过程中,学会用简单随机抽样方法从总体中抽取样本;通过对实例的分析,了解分层抽样和系统抽样方法;
2.结合具体的实际问题情境,理解随机抽样的必要性和重要性;
1.能从现实生活或其他学科中提出具有一定价值的统计问题;
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.
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