Population Entry Ticket

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What is a population in statistics?

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A population is the entire group of individuals or items that we want to study or draw conclusions about.

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What is a sample in statistics?

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A sample is a subset of the population selected for observation and analysis.

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How do you identify a population in a survey?

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The population is identified as the complete set of individuals or items that the survey aims to understand.

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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 defined group, while a sample consists of a portion of that group.

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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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What is a convenience sample?

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A convenience sample is a non-random selection of individuals that is easy to reach or sample.

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What is sampling bias?

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Sampling bias occurs when certain members of the population are systematically more likely to be selected than others.

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What is a stratified sample?

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A stratified sample is created by dividing the population into subgroups and then taking a sample from each subgroup.

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What is the purpose of a survey?

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The purpose of a survey is to gather information from a sample to make inferences about the population.

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What is the significance of sample size in surveys?

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Sample size affects the reliability and validity of survey results; larger samples generally provide more accurate estimates.