Sample and Population

Have you heard the words sample or population before? If so where?

What does the word random mean?

Which of the following describes what a sample is?

• A selection of people, other living creatures, or things from a population

• A large group of people, other living creatures, or things

Do samples always accurately tell us information about a population?

• Yes

• No

Which of the following are reasons why a sample may not accurately represent a population?

• Selection bias

• Having a non biased sample

• Sampling error

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• Yes

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