Math Grade 7 Quiz Understanding Sampling in Statistics - 7.SP.A.1

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Question 1 of 10

1. Question
Why is it important for a sample to be representative of the population?
- A) It makes the research cheaper.
- B) It ensures that inferences drawn are valid for the entire population.
- C) It speeds up the data collection process.
- D) It simplifies the data analysis.
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Question 2 of 10

2. Question
What is the main purpose of random sampling?
- A) To ensure that every individual has an equal chance of being selected.
- B) To make the sampling process easier.
- C) To match the population size.
- D) To guarantee that the results are accurate.
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Question 3 of 10

3. Question
Which of the following is a potential problem if the sample is NOT representative of the population?
- A) The results can be easily predicted.
- B) The findings cannot be generalized to the population.
- C) There will be too much data to analyze.
- D) The research will take less time to complete.
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Question 4 of 10

4. Question
In a school of 800 students, a survey about the favorite school lunch is conducted. If the survey only asks 10 of the football team’s members, why might this be problematic?
- A) Football players cannot make valid choices.
- B) The sample size is too large.
- C) It may not reflect the preferences of all students.
- D) All students prefer the same lunches.
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Question 5 of 10

5. Question
What does it mean if a sample is biased?
- A) The sample is too large.
- B) The sample favors a particular segment of the population.
- C) The sample is randomly selected.
- D) The sample is perfect for research purposes.
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Question 6 of 10

6. Question
If you want to know the average height of all students in your school, why should you avoid only measuring students in the basketball team?
- A) Because basketball players are all the same height.
- B) Because basketball players may not be an average representation.
- C) Because basketball players will refuse to participate.
- D) Because it's easier to measure them.
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Question 7 of 10

7. Question
What is the benefit of using a random sample to conduct a survey?
- A) It requires less time.
- B) It ensures the sample represents the population without bias.
- C) It is the easiest method available.
- D) It doesn’t require any tools.
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Question 8 of 10

8. Question
A survey is conducted on 500 out of 2500 people in a town to know their favorite ice cream flavor. What are these 500 people considered?
- A) The population
- B) A biased group
- C) The sample
- D) Random people
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Question 9 of 10

9. Question
When can generalizations about a population from a sample be considered valid?
- A) When the sample is chosen randomly.
- B) When the sample contains the people easiest to reach.
- C) When the sample includes friends and family.
- D) All of the above.
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Question 10 of 10

10. Question
If researchers are studying the effects of a new allergy medication, why is it important that their sample includes individuals with various levels of allergy severity and not just those with mild allergies?
- A) Because it’s easier to study people with mild allergies.
- B) Because people with severe allergies don’t respond to treatment.
- C) To ensure the sample is representative and findings can be generalized.
- D) Because people with mild allergies should be prioritized.
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Math Grade 7 Quiz Understanding Sampling in Statistics – 7.SP.A.1

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