Random Samples

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What is a random sample?

Back

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

Tags

CCSS.HSS.IC.B.3

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Why is it important for a sample to be representative of the population?

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A representative sample ensures that the results of a survey or study can be generalized to the entire population, making the findings more valid.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the difference between a sample and a population?

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A population is the entire group being studied, while a sample is a smaller group selected from that population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What does it mean if a sample is biased?

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A biased sample is one that does not accurately represent the population, leading to skewed or invalid results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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How can you ensure a sample is random?

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To ensure a sample is random, use methods like random number generators or drawing names from a hat to select participants.

Tags

CCSS.HSS.IC.B.3

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What is a survey?

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A survey is a method of collecting data by asking people questions to gather information about their opinions, behaviors, or characteristics.

Tags

CCSS.RI.6.7

CCSS.RI.7.7

CCSS.RL.6.7

CCSS.RL.7.7

CCSS.RL.8.7

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What is the purpose of conducting a survey?

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The purpose of conducting a survey is to gather information and insights about a specific topic or population.

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What is sampling error?

Back

Sampling error is the difference between the results obtained from a sample and the actual values in the population.

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What is a convenience sample?

Back

A convenience sample is a type of non-random sampling where participants are selected based on their easy availability.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Why might a convenience sample lead to inaccurate results?

Back

A convenience sample may lead to inaccurate results because it may not represent the diversity of the entire population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1