II.11

Identify representative, random, and biased samples

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II.11Identify representative, random, and biased samplesCSR

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Warren surveyed 342 business owners in the city.

Is this sample of the people in the city likely to be representative?

yes

ref_doc_title.

Learn with an example

question

Sarah polled the first 27 attendees at a concert.

Is this a random sample of the concert attendees?

Option,

yes

Option,

key idea

In a random sample, every person or item has an equal chance of being chosen.

solution

Since the first attendees might not be similar to the other attendees, it is a biased sample, not a random sample.

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