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AP Stats

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Unit 3

3.8 Multiple Choice Questions

5 min read•december 12, 2021

AP Statistics 📊

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Multiple Choice Practice for Collecting Data

Welcome to Unit 3 AP Statistics Multiple Choice Questions! Grab some paper and a pencil 📄 to record your answers as you go. You can see how you did on the Unit 3 Practice Questions Answers and Review sheet once you're done. Don't worry, we have tons of resources available if you get stumped 😕 on a question. And if solo study is not your thing, join a group in Hours!

Not ready to take a quiz yet? Check out the Intro to Unit 3.

Image courtesy of Pixabay

Facts about the test: The AP Statistics exam has 40 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. That means it should take you around 11 minutes to complete 5 questions.

*The following questions were not written by College Board and although they cover information outlined in the AP Statistics Course and Exam Description the formatting on the exam may be different.

1. A newspaper writer is gathering data about how many residents enjoy baseball. To gather his data, he interviews people as they walk past the local baseball team's stadium on game day. What type of sample is taken here?

A. Stratified Random Sample

B. Cluster Sample

C. Convenience Sample

D. SRS

2. A local mayor is wanting to raise taxes to build a new city hall. In order to determine the support for his initiative, he takes a SRS of 300 adults aged 45-60 and finds that most of them support his tax increase. What type of bias is this?

A. Undercoverage

B. Response Bias

C. Voluntary Response Bias

D. Confounding Bias

3. A researcher wants to know the opinions of workers in education on their pay scale. In order to find the true opinion, the researcher takes a simple random sample of 5000 teachers in the United States and asks them "Do you believe your pay is fair for the work you do?" What is the intended population in this question?

A. All US residents

B. 5000 teachers surveyed

C. All teachers in the US

D. All teachers

4. A researcher wants to know the opinions of workers in education on their pay scale. In order to find the true opinion, the researcher takes a simple random sample of 5000 teachers in the United States and asks them "Do you believe your pay is fair for the work you do?" What is the sample in this question?

A. All US residents

B. 5000 teachers surveyed

C. All teachers in the US

D. All teachers

5. A journalist is interested in seeing how college students feel about snow days being converted to e-days where they still have to complete school work virtually. Therefore, she send an email survey to students asking their opinion. What method of sampling is used here?

A. Census

B. Convenience Sample

C. Systematic Sample

D. Voluntary sample

6. A boss wishes to pick a simple random sample from his employees to form a committee. In order to do so, he takes a SRS of 2 from each of the 5 departments at the company and uses those 10 as his committee. What type of sample is this?

A. Cluster Sample

B. Stratified Random Sample

C. Census

D. Convenience Sample

7. In order to determine the amount of students who eat school lunches, a local school principal asks every single student in his school whether they will be eating school lunch or bringing their own. What type of sample is this?

A. Simple Random Sample

B. Stratified Random Sample

C. Census

D. Convenience Sample

8. For a new study being done on the effectiveness of coffee as part of someone's morning routine, the question is asked: "Many studies have shown that coffee is a necessary part of some people's morning routines and has been shown to have positive impacts on their productivity and energy level. Do you feel coffee improves your mood?" What type of bias is represented by this study?

A. Non Response Bias

B. Response Bias

C. Voluntary Response Bias

D. Convenience Sample Bias

9. A study is done to test the effects of taking a baby aspirin on general heart health. What is a possible confounding variable in this study?

A. Age of participants

B. Taking placebo

C. Taking baby aspirin

D. Heart health

10. Which of the following is not a component of a well designed experiment?

A. Random Assignment

B. Reallocation of methods

C. Replication

D. Control

11. A study was done in Japan to determine the effectiveness of poison ivy treatments. Participants were called in (and paid) to rub "poison ivy" on their arms and then 2 days later, begin to use a cream to treat the ensuing rash since most participants did break out in a rash. However, none of the participants were exposed to poison ivy, yet many of them still developed a rash. What is this an example of?

A. Single Blind

B. Random Assignment

C. Double Blind

D. Placebo Effect

12. Which of the following best describes a randomized block design?

A. Each participant will receive both treatments to minimize or block effects of outside sources

B. Recipients do not know which treatment they are receiving, so their treatment is blocked from them

C. Only selecting certain types of participants, hence blocking outliers from participating

D. Treatments are randomly assigned within each "block" or group of like people

13. An entomologist wants to test different growth hormones on ant colonies. In order to do this, he takes 4 different ant colonies and applies the following treatments to each of the 4 colonies: 0 mL, 5 mL, 10 mL and 20 mL and then observes the number of ants 7 days later. What are the experimental units in this study?

A. The ant colonies

B. The ants

C. The growth hormone amounts

D. The number of ants

14. An entomologist wants to test different growth hormones on ant colonies. In order to do this, he takes 4 different ant colonies and applies the following treatments to each of the 4 colonies: 0 mL, 5 mL, 10 mL and 20 mL and then observes the number of ants 7 days later. Does this experiment have a control and if so, what is it?

A. The 20 mL group

B. The 0 mL group

C. The 5 mL group

D. It does not have a control

15. To help students focus on schoolwork, an educational research firm is studying the effects of music with student retention. In order to test this, students are randomly assigned to a class where music is played softly in the background or a class where no music is played. Student retention of content is the _________ variable.

A. Explanatory

B. Confounding

C. Matched

D. Response