SAMPLE OR POPULATION

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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 gather information about.

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What is a sample in statistics?

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A sample is a subset of the population that is selected for the actual study or survey.

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Why is it important to have a representative sample?

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A representative sample accurately reflects the characteristics of the population, allowing for valid conclusions.

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What does it mean to survey a sample?

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To survey a sample means to collect data or opinions from a selected group of individuals from the population.

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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 includes only a portion of that group.

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What is random sampling?

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Random sampling is a technique where each member of the population has an equal chance of being selected for the sample.

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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, leading to skewed results.

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What is the purpose of conducting surveys?

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Surveys are conducted to gather information, opinions, or preferences from a group to make informed decisions.

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How can a sample size affect the results of a survey?

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A larger sample size generally leads to more reliable results, while a smaller sample size may not accurately reflect the population.

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What is a convenience sample?

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