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1. |
Every fifth person that comes out of a library is asked whether they prefer to read a book or watch a movie. Is this biased or unbiased and why? |
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A. |
biased, because the sample is not representative of everyone in the library |
B. |
unbiased, because the location is not important |
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C. |
unbiased, because they are using a systematic random sample |
D. |
biased, because a library loans out primarily books |
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Hint |
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2. |
Steve needed to find out which classes people liked the most. Therefore, after he arrived at his math club meeting, he asked some people there. What kind of sample is this? |
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A. |
unbiased, random stratified sample |
B. |
biased, voluntary |
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C. |
unbiased, random sample |
D. |
biased, convenience |
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Hint |
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3. |
Everyone at the stadium is eligible for a drawing at the end of the night. If everyone was given a number, and 10 winners are announced, what kind of sampling is represented? |
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A. |
Cluster Sampling |
B. |
Convenience Sampling |
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C. |
Systematic Sampling |
D. |
Random Sampling |
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Hint |
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4. |
In a factory, every fifth product out of 100 is quality tested. What kind of sampling is represented? |
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A. |
Convenience Sampling |
B. |
Systematic Sampling |
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C. |
Random Sampling |
D. |
Cluster Sampling |
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Hint |
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5. |
Which reflects the convenience sampling method that a language arts teacher might use to identify the most popular book read by the language arts students? |
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A. |
Ask every third student from the 60 students sitting in a study hall. |
B. |
Ask students who are wearing a red shirt. |
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C. |
Ask all the students in one geometry class. |
D. |
Ask the first 10 students who walk into the classroom. |
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Hint |
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