Math Grade 7 Quiz Drawing Inferences from Random Samples - 7.SP.A.2

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Question 1 of 10

1. Question
What does it mean if there is high variability between different random samples taken from the same population?
- A) The population characteristics are very diverse.
- B) The sampling method is flawed.
- C) The predictions or estimates will be very accurate.
- D) The entire population has changed rapidly
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Question 2 of 10

2. Question
If three different random samples from a population give you three different estimates for the same characteristic, what should you be cautious about?
- A) Concluding that the characteristic is inconsistent.
- B) Assuming one sample is correct and the others are wrong.
- C) Making a definitive statement about the population based on these samples.
- D) Ignoring the results because they are different.
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Question 3 of 10

3. Question
Why is it important to consider the variation in estimates when using random samples to make predictions?
- A) Because it helps in choosing the best estimate.
- B) Because it reflects the reliability and stability of the results.
- C) Because it determines the winner in a competition.
- D) Because it makes the research more challenging.
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Question 4 of 10

4. Question
What is the primary reason for using a random sample to make inferences about a whole population?
- A) It ensures complete accuracy.
- B) It reflects the characteristics of the whole population.
- C) It is easier to analyze.
- D) It is the fastest method available.
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Question 5 of 10

5. Question
Why should multiple random samples be taken from the same population?
- A) To compare the most extreme results.
- B) To understand the variability or consistency in estimates.
- C) Because it is required by law.
- D) To ensure complete accuracy in predictions.
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Question 6 of 10

6. Question
When estimating the mean word length in a book by randomly sampling words, what could cause variability in your results?
- A) The genre of the book.
- B) The number of pages in the book.
- C) The randomness of the sample.
- D) The popularity of the book
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Question 7 of 10

7. Question
If you conduct three separate surveys about favorite ice cream flavors in your school, and each time vanilla ranks differently, what does this suggest?
- A) Students' preferences change rapidly.
- B) There is variability in your samples.
- C) Vanilla ice cream's popularity is decreasing.
- D) The surveys are flawed.
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Question 8 of 10

8. Question
What is the purpose of generating multiple samples of the same size from a population?
- A) To confirm the results of the original sample.
- B) To gauge the variation in estimates or predictions.
- C) To increase the work for researchers.
- D) To prove the hypothesis correct.
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Question 9 of 10

9. Question
In predicting the winner of a school election based on randomly sampled survey data, what factor could affect the accuracy of your prediction?
- A) The time of day the survey is conducted.
- B) The number of candidates running.
- C) The size and representativeness of your sample.
- D) The current weather conditions.
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Question 10 of 10

10. Question
How can you best gauge how far off an estimate might be?
- A) By taking a new sample from a different population.
- B) By comparing it to expert opinions.
- C) By generating multiple samples and observing the variation.
- D) By increasing the size of your sample dramatically.
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Math Grade 7 Quiz Drawing Inferences from Random Samples – 7.SP.A.2

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