Exercise
Form 1: Representative vs. Biased Samples
Learn to distinguish between representative and biased samples. Understand how sample selection methods affect data quality and accuracy.
Questions
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MultiChoice
Which sampling method produces the most representative sample of all students in a middle school?
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MultiChoice
A student surveys members of the video game club to find out the average hours of sleep students get. Is this sample representative or biased?
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MultiChoice
To determine student interest in after-school sports, a survey is conducted during football practice. What type of bias is present?
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MultiChoice
Which method guarantees every student in a school an equal chance of being selected?
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MultiChoice
What defines a representative sample?
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MultiChoice
A survey about town budget spending is conducted at a local orchestra concert. This sample is likely:
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MultiChoice
Which survey location would provide the least biased sample regarding community library use?
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MultiChoice
Why is sample bias problematic when making statistical inferences?
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MultiChoice
Which sampling strategy minimizes bias for determining school lunch preferences?
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MultiChoice
A news station asks viewers to text 'YES' or 'NO' to a poll. What type of sample is this?
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MultiChoice
Which statement about statistical sampling is true?
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MultiChoice
To find out how many hours neighbors spend walking per week, a researcher surveys 40 people at a dog park. Is this sample representative of the neighborhood?