Many websites like Amazon and Yelp include customer ratings and reviews of products, restaurants, hotels, and so on. How does bias affect the ratings and reviews?

The bias probably under-estimates the quality of the item.

The bias doesn't affect the ratings or reviews

The bias probably over-estimates the quality of the item.

We don't know how the bias affects the ratings or reviews.

A store manager wants to estimate the proportion of all the customers of the store who would use store credit card for their purchases. The manager selects a random sample of 1000 customers from their customer loyalty program list and sends them a survey asking if they would be interested in applying for a store credit card. Of the 78customers who responded to the survey, 70 of them expressed interest in applying for a store credit card. Should the manager be concerned about these results? If so, why?

Yes, because so few customers responded. Those who responded might be the people who are most interested in a store credit card.

Yes, because he only asked customers from the store loyalty program. They may be more interested in a store credit card than all customers.

The manager should not be concerned about these results.

Yes, because he should have asked more customers.

Which of the following questions is unbiased ?

What was the score of the football game last Friday?

Have you tried those nasty new flavors of Lays potato chips?

Do you think the government should be able to spy on all of your private text messages?

Do you think our awesome principal is a great leader for our school?

The most important advantage of experiments over observational studies is that

B)Experiments can usually give better evidence of causation

A) experiments are usually easier to carry out

C) Confounding cannot happen in experiments

D) Observational studies cannot use random samples

In order to perform an experiment using 60 members of a gym, I first divide the list of members into men and women because I feel that the results will be different based on gender. I then randomly choose 30 men and 30 women. I assign half of the men to the treatment group and half to the control group. I repeat this procedure with the women. This is an example of a:

double blind simple random sample

A market research company wishes to find out whether the population of students at a university prefers Starbucks or Dunkin Donuts. A random sample of students is selected, and each student is asked first to try both but the order they try them is randomly decided with a coin toss (heads: Starbucks, then Dunkin. tails: vice versa). They then indicate which brand they prefer. This is an example of

a completely randomized experiment

Why do we randomize in an experiment or a survey?

It helps reduce the effects of confounding variables

It eliminates all possible confounding variables

Identify the design for the experiment

completely randomized, the factor is pesticide

randomized block, blocked on tree type, the factor is pesticide

This experiment is single blind, blocked by pesticide

The experiment is double blind, the factors are tree type and pesticide

The purpose of randomization in an experiment is to:

make the treatment groups as similar as possible.

make the treatment groups as different as possible.

create the blocks in an experiment.

reduce variability within treatment groups.

Can changing diet reduce high blood pressure? Vegetarian and low-salt diets are both promising. Men with high blood pressure are assigned at random to four diets: 1) normal diet with unrestricted salt, 2) vegetarian with unrestricted salt, 3) normal with restricted salt, 4) vegetarian with restricted salt. This experiment has

two factors, normal/vegetarian diet and unrestricted/restricted salt

two factors, high blood pressure and type of diet

three factors, men, high blood pressure, and type of diet

four factors, the types of diets being compared

The transportation department of a large city wants to estimate the proportion of residents who would use a system of aerial gondolas to commute to work. The gondolas would be part of the city’s effort to relieve traffic congestion. The department asked a random sample of residents whether they would use the gondolas. The residents could respond with yes, no, or maybe. Which of the following is the best description of the method for data collection used by the department?

An experiment with a completely randomized design

An experiment with a randomized block design

An experiment with a matched-pairs design

Some contact lens wearers report problems with dryness in their eyes. A study was conducted to evaluate the effectiveness of a new eye-drop solution to relieve dryness for contact lens wearers. Twenty-five volunteers who wore contact lenses agreed to use the new solution for one month. At the end of the month, 36 percent of the volunteers reported that the new solution was effective in relieving dryness. The company that produced the new eye-drop solution concluded that using the new solution is more effective in relieving dryness than using no solution. Which of the following best explains why the study does not support such a conclusion?

The study had no control group.

The participants were volunteers.

The participants self-reported the frequency with which they used the new solution.

The participants self-reported the effectiveness of the new solution.

An experiment will be conducted to determine whether children learn their multiplication facts better by practicing with flash cards or by practicing on a computer. Children who volunteer for the experiment will be randomly assigned to one of the two treatments. Because the children’s gender may affect the outcome, there will be blocking by gender. After practice, the children will be given a test on their multiplication facts. Why will it be impossible to conduct a double-blind experiment?

The child will know whether he or she used flash cards or the computer.

The experimenter will know whether the child is a boy or a girl and whether he or she used flash cards or the computer.

The child will know whether he or she is a boy or a girl.

The person who grades the tests will know whether the child was a boy or a girl.

The person who grades the tests will know whether the child used flash cards or the computer.

What are "double-blind" studies?

when nobody in the study is aware of who received placebos

when everyone in the study is aware of who received the placebos

when only the doctors know who got the placebos

when only the patients know if they received a placebo or not

AP Stat 4.1 & 4.2 Review Sampling/Experiments

Authored by Jamie Branson

Mathematics

11th - 12th Grade

CCSS covered

Used 83+ times

AP Stat 4.1 & 4.2 Review Sampling/Experiments

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This quiz comprehensively covers statistical sampling methods and experimental design concepts appropriate for Advanced Placement Statistics at the 11th and 12th grade levels. The questions systematically assess students' understanding of sampling techniques (simple random, stratified, cluster, and systematic sampling), sources of bias (undercoverage, response, non-response, and voluntary response bias), and experimental design principles including randomization, control groups, and blinding. Students must demonstrate their ability to identify appropriate sampling methods for specific scenarios, recognize various forms of bias in data collection, distinguish between observational studies and experiments, and understand the components of well-designed experiments including factors, treatments, and blocking. The content requires students to apply statistical reasoning to real-world situations, evaluate the validity of study conclusions, and understand how proper experimental design helps establish causation rather than just correlation. Created by Jamie Branson, a Mathematics teacher in US who teaches grade 11-12. This comprehensive review quiz serves as an excellent tool for formative assessment, allowing students to practice identifying sampling methods and experimental design concepts before major assessments. Teachers can effectively use this quiz for warm-up activities to activate prior knowledge, as homework assignments to reinforce classroom learning, or as review material before AP examinations. The variety of question formats and real-world scenarios make it particularly valuable for helping students connect statistical concepts to practical applications they might encounter on the AP Statistics exam. This quiz directly supports Common Core standards S-IC.3 (recognize the purposes of and differences among sample surveys, experiments, and observational studies) and S-IC.6 (evaluate reports based on data), while also aligning with AP Statistics curriculum requirements for understanding statistical inference and experimental design principles.

Content View

Student View

35 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Dylan wants to know how the students at his school rate the cafeteria. He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

Yes, because it is a convenience survey

No, the basketball team has the smartest students

Yes, because it's voluntary survey

No, he should have asked the football team

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

230 Teachers

All Wicomico County Teachers

Students

Wicomico County Public Schools

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

thirty students who are often tardy

thirty students who are rarely tardy

thirty of her friends

thirty randomly selected students from her school

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

The sample didn't include students.

The sample is too small.

The sample can only be accurate if each teacher is included in the sample

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Interview every 10th student who enters the school in the morning.

simple random

voluntary response

systematic

convenience

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.RI.K.7

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.
This is an example of:

Simple Random Sample

Stratified Random Sample

Cluster Random Sample

Systematic Random Sampling

Tags

CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

I want to estimate the proportion of people in Chula Vista who own cats. I stand outside a local pet store and ask every 4th person whether they own a cat or not. What is the most prominent kind of bias evident?

Undercoverage

Response

Non-Response

Voluntary Response

Tags

CCSS.HSS.IC.B.3

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AP Stat 4.1 & 4.2 Review Sampling/Experiments

Dylan wants to know how the students at his school rate the cafeteria. He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

Interview every 10th student who enters the school in the morning.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.
This is an example of:

I want to estimate the proportion of people in Chula Vista who own cats. I stand outside a local pet store and ask every 4th person whether they own a cat or not. What is the most prominent kind of bias evident?

“Some cell phone users have developed brain cancer. Should all cell phones come with a warning label explaining the danger of using cell phones?”
What kind of bias is evident in this survey question?

Many websites like Amazon and Yelp include customer ratings and reviews of products, restaurants, hotels, and so on. What is the predominant bias evident in these ratings and reviews?

Many websites like Amazon and Yelp include customer ratings and reviews of products, restaurants, hotels, and so on. How does bias affect the ratings and reviews?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

AP Stat 4.1 & 4.2 Review Sampling/Experiments

Dylan wants to know how the students at his school rate the cafeteria. He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

Identify the Population:Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

Interview every 10th student who enters the school in the morning.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block. This is an example of:

I want to estimate the proportion of people in Chula Vista who own cats. I stand outside a local pet store and ask every 4th person whether they own a cat or not. What is the most prominent kind of bias evident?

“Some cell phone users have developed brain cancer. Should all cell phones come with a warning label explaining the danger of using cell phones?”What kind of bias is evident in this survey question?

Many websites like Amazon and Yelp include customer ratings and reviews of products, restaurants, hotels, and so on. What is the predominant bias evident in these ratings and reviews?

Many websites like Amazon and Yelp include customer ratings and reviews of products, restaurants, hotels, and so on. How does bias affect the ratings and reviews?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.
This is an example of:

“Some cell phone users have developed brain cancer. Should all cell phones come with a warning label explaining the danger of using cell phones?”
What kind of bias is evident in this survey question?