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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. |
unbiased, because they are using a systematic random sample |
B. |
biased, because a library loans out primarily books |
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C. |
biased, because the sample is not representative of everyone in the library |
D. |
unbiased, because the location is not important |
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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. |
unbiased, random sample |
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C. |
biased, convenience |
D. |
biased, voluntary |
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Hint |
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3. |
Which of the following is not necessarily considered a part of the population? |
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A. |
census |
B. |
the data collector |
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C. |
biased sample |
D. |
random sample |
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Hint |
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4. |
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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5. |
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. |
Random Sampling |
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C. |
Systematic Sampling |
D. |
Cluster Sampling |
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Hint |
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