2015 AP Statistics统计学真题Practice Exam系列之选择题免费下载

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2015 AP Statistics Practice Exam Multiple Choice Questions Free Download

2015 AP统计学模考选择题部分免费下载

此套题共计1小时30分钟，共40题

占总分50%

仅可使用铅笔答题

可以使用图形计算器

考试时会提供常用公式表

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部分真题预览：

2）A researcher wanted to estimate the average amount of money spent on extracurricular activities per school in a certain region. The researcher randomly selected 20 public schools and 20 private schools in the region to use for a sample. Which of the following best describes the type of sample that was taken?

1. A census
2. A cluster sample
3. A convenience sample
4. A simple random sample
5. A stratified random sample

4) A researcher conducting a telephone survey is concerned about possible sources of bias. Of the following, which is the best example of nonresponse bias?

1. The wording of the questions in the survey leads people to respond in a certain way.
2. The behavior of the interviewer leads people to respond in a certain way.
3. People might be uncomfortable with the survey questions and, as a result, might not always respond to those questions truthfully.
4. Many of the people selected to participate in the survey who do not respond might have opinions different from those who do respond.
5. People without telephones are overlooked in the sampling procedure used to determine who is surveyed.

5) At a large conference of teachers from a variety of subjects, a random sample of 50 mathematics teachers attending the conference was selected. Among the selected mathematics teachers, 28 percent had taken one or more courses in statistics. For which of the following populations is 28 percent a reasonable estimate of the percentage of those who have taken one or more courses in statistics?

1. All mathematics teachers
2. All mathematics teachers who attended the conference
3. All mathematics teachers who have taken one or more courses in statistics
4. All teachers who attended the conference
5. All teachers

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