SR Unit 4 Final Review

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What is a simple random sample?

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A sampling method where every individual has an equal chance of being selected. For example, using a random-number generator to select cars from a dealership.

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What is convenience sampling?

Back

A sampling method where individuals are selected based on their easy availability. For example, selecting the first six students who enter the classroom.

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What is voluntary response sampling?

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A sampling method where individuals choose to participate. For example, asking any six students to come to the front of the class.

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What is stratified sampling?

Back

A sampling method where the population is divided into subgroups (strata) and random samples are taken from each. For example, dividing a class by gender and randomly choosing students from each group.

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What is cluster sampling?

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A sampling method where the population is divided into clusters, and entire clusters are randomly selected. For example, selecting a whole class from a school.

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What is systematic sampling?

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A sampling method where individuals are selected at regular intervals from a randomly ordered list. For example, selecting every 5th student on a list.

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What is the difference between random sampling and convenience sampling?

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Random sampling gives every individual an equal chance of selection, while convenience sampling selects individuals based on ease of access.

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Why is stratified sampling used?

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Stratified sampling is used to ensure that specific subgroups are adequately represented in the sample.

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What is the purpose of using a random-number generator in sampling?

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To ensure that each individual has an equal chance of being selected, thus reducing bias.

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What is an example of cluster sampling in a school setting?

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Selecting all students from a randomly chosen classroom to participate in a survey.