Sampling & Bias

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| By Dana Deuitch

Dana Deuitch

Community Contributor

Quizzes Created: 3 | Total Attempts: 1,863

Questions: 10 | Attempts: 1,581 | Updated: Mar 22, 2023

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One Variable Statistics - Sampling & Bias

Questions and Answers

1.

The Toronto Blue Jays want to survey their fans regarding a new promotion. They decide to survey 200 fans by using the same proportions of age groups (i.e. 5-16, 17-28, etc) as the population. Classify the sampling method.
- A.
  
  Simple Random
- B.
  
  Systematic
- C.
  
  Stratefied
- D.
  
  Cluster
- E.
  
  Voluntary
- F.
  
  Multi-stage
- G.
  
  Convenience
Correct Answer
C. Stratefied

Explanation
Same Proportion = Stratefied

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2.

In order to get data about eating habits, you ask the 4 friends you are eating lunch with. Classify the sampling method.
- A.
  
  Simple Random
- B.
  
  Systematic
- C.
  
  Stratefied
- D.
  
  Cluster
- E.
  
  Voluntary
- F.
  
  Multi-stage
- G.
  
  Convenience
Correct Answer
G. Convenience

Explanation
People I am with = Convenience

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1
0
3.

A restaurant wants feedback on how their customer service is so they decide to leave a survey on each table after a meal. Classify the sampling method.
- A.
  
  Simple Random
- B.
  
  Systematic
- C.
  
  Stratefied
- D.
  
  Cluster
- E.
  
  Voluntary
- F.
  
  Multi-stage
- G.
  
  Convenience
Correct Answer
E. Voluntary

Explanation
People don't have to fill in the feedback cards = Voluntary

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4.

The principal of Huron Heights wants to find out what students think of the 9 applied math curriculum. He selects three of the twelve grade 9 applied classes and surveys all the students in those classes. Classify the sampling method.
- A.
  
  Simple Random
- B.
  
  Systematic
- C.
  
  Stratefied
- D.
  
  Cluster
- E.
  
  Voluntary
- F.
  
  Multi-stage
- G.
  
  Convenience
Correct Answer
D. Cluster

Explanation
3 Classes, All Students = Cluster

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5.

The York Region District School Board wants to survey students about sleeping habits. They decide to randomly choose 4 high schools from across the region. They then pick 2 classes from each grade to survey. Classify the sampling method.
- A.
  
  Simple Random
- B.
  
  Systematic
- C.
  
  Stratefied
- D.
  
  Cluster
- E.
  
  Voluntary
- F.
  
  Multi-stage
- G.
  
  Convenience
Correct Answer
F. Multi-stage

Explanation
Two levels of sampling = multi-stage

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6.

A Canadian radio station asks listeners to call in to voice their opinions on whether a Canadian figure skater should have won gold. Classify the type of bias present.
- A.
  
  Sampling
- B.
  
  Response
- C.
  
  Measurement
- D.
  
  Non-response
Correct Answer
D. Non-response

Explanation
Radio talk show - people don't call in unless they have a strong opinion = Non-Response Bias

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7.

Employees at a local fast food chain are asked to raise their hands if they feel that the management is doing a poor job, during a staff meeting. Classify the type of bias present.
- A.
  
  Sampling
- B.
  
  Response
- C.
  
  Measurement
- D.
  
  Non-response
Correct Answer
B. Response

Explanation
Employees won't want to be fired / punished for saying management is bad, so they will lie by not putting up their hand = Response Bias. Remember not raising your hand is still a response.

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8.

A survey asked the question: "Are you in favour of holding the Olympics in Toronto, even though your taxes may increase?" Classify the type of bias present.
- A.
  
  Sampling
- B.
  
  Response
- C.
  
  Measurement
- D.
  
  Non-response
Correct Answer
C. Measurement

Explanation
Loaded question (trying to influence the answer through the wording of the question) = Measurement Bias

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9.

People on the way out of the new James Bond movie are asked if they enjoy action movies. Classify the type of bias present.
- A.
  
  Sampling
- B.
  
  Response
- C.
  
  Measurement
- D.
  
  Non-response
Correct Answer
A. Sampling

Explanation
People who go see action movies generally like action movies. Sampling Bias.

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10.

Students are asked by their teacher whether they had ever cheated on a test. Classify the type of bias present.
- A.
  
  Sampling
- B.
  
  Response
- C.
  
  Measurement
- D.
  
  Non-response
Correct Answer
B. Response

Explanation
Students who have cheated might lie to the teacher about cheating. Response Bias

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Sampling & Bias

The Toronto Blue Jays want to survey their fans regarding a new promotion. They decide to survey 200 fans by using the same proportions of age groups (i.e. 5-16, 17-28, etc) as the population. Classify the sampling method.

In order to get data about eating habits, you ask the 4 friends you are eating lunch with. Classify the sampling method.

A restaurant wants feedback on how their customer service is so they decide to leave a survey on each table after a meal. Classify the sampling method.

The principal of Huron Heights wants to find out what students think of the 9 applied math curriculum. He selects three of the twelve grade 9 applied classes and surveys all the students in those classes. Classify the sampling method.

The York Region District School Board wants to survey students about sleeping habits. They decide to randomly choose 4 high schools from across the region. They then pick 2 classes from each grade to survey. Classify the sampling method.

A Canadian radio station asks listeners to call in to voice their opinions on whether a Canadian figure skater should have won gold. Classify the type of bias present.

Employees at a local fast food chain are asked to raise their hands if they feel that the management is doing a poor job, during a staff meeting. Classify the type of bias present.

A survey asked the question: "Are you in favour of holding the Olympics in Toronto, even though your taxes may increase?" Classify the type of bias present.

People on the way out of the new James Bond movie are asked if they enjoy action movies. Classify the type of bias present.

Students are asked by their teacher whether they had ever cheated on a test. Classify the type of bias present.