Random Samples

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What is a random sample?

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A random sample is a subset of individuals chosen from a larger population, where each individual has an equal chance of being selected.

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CCSS.HSS.IC.B.3

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Why is it important for a sample to be unbiased?

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An unbiased sample accurately represents the population, allowing for valid conclusions to be drawn from the data.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What does it mean for a sample to be representative?

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A representative sample reflects the characteristics of the entire population, ensuring that the results can be generalized.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the population in a study?

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The population is the entire group of individuals or items that researchers are interested in studying.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a sample in research?

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A sample is a smaller group selected from the population for the purpose of conducting a study.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the difference between a population and a sample?

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A population includes all members of a specified group, while a sample is a subset of that population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a biased sample?

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A biased sample is one that does not accurately represent the population, often due to non-random selection methods.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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How can you ensure a sample is unbiased?

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To ensure a sample is unbiased, it should be selected randomly and include a diverse range of individuals from the population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the significance of sample size in research?

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A larger sample size generally leads to more accurate and reliable results, reducing the margin of error.

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What does it mean to survey a population?

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To survey a population means to collect data from a sample of individuals to make inferences about the entire group.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1