2012 AP Statistics统计学真题Practice Exam系列之简答题免费下载

历年AP Statistics统计学系列

真题与答案下载

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2012 AP Statistics Practice Exam Free-Response Questions Free Download

2012 AP统计学模考简答题部分免费下载

此套题仅Section II含有简答题

共计1小时30分钟，共6题

占总分50%

每道大题可能含有不同数量的小题

其中Part A建议用时1小时05分钟，共5题，占Section II总分75%

Part B建议用时25分钟，共1题，占Section II总分25%

可以使用图形计算器

考试时会提供常用公式表

完整版下载链接见文末

部分真题预览：

Part A：

1）The scatterplot below displays the price in dollars and quality rating for 14 different sewing machines.

1. Describe the nature of the association between price and quality rating for the sewing machines.
2. One of the 14 sewing machines substantially affects the appropriateness of using a linear regression model to predict quality rating based on price. Report the approximate price and quality rating of that machine and explain your choice.
3. Chris is interested in buying one of the 14 sewing machines. He will consider buying only those machines for which there is no other machine that has both higher quality and lower price. On the scatterplot reproduced below, circle all data points corresponding to machines that Chris will consider buying.

Part B：

6）Two students at a large high school, Peter and Rania, wanted to estimate m, the mean number of soft drinks that a student at their school consumes in a week. A complete roster of the names and genders for the 2,000 students at their school was available. Peter selected a simple random sample of 100 students. Rania, knowing that 60 percent of the students at the school are female, selected a simple random sample of 60 females and an independent simple random sample of 40 males. Both asked all of the students in their samples how many soft drinks they typically consume in a week.

1. Describe a method Peter could have used to select a simple random sample of 100 students from the school.

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