Statistics

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What is Data?

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The set of values collected from the variable from each of the elements that belong to the sample.

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What is a discrete variable?

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A quantitative variable that can assume a countable number of values, in other words, there is a gap between any two values.

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What is a continuous variable?

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A quantitative variable that can assume an uncountable number of values, in other words, it includes every possible value between any two values.

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What is a variable (or response variable)?

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A characteristic of interest about each individual element of a population or sample.

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What is Statistics?

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Statistics is the universal language of the sciences that involves information, numbers, visual graphics to summarize information and its interpretation. In other words, the science of collecting, describing, and interpreting data.

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What is a population in statistics?

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The entire group of individuals or instances about whom we hope to learn.

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What is a sample in statistics?

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A subset of the population selected for observation and analysis.

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What is a parameter?

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A numerical value that summarizes a characteristic of a population.

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What is a statistic?

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A numerical value that summarizes a characteristic of a sample.

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What is the difference between qualitative and quantitative variables?

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Qualitative variables describe categories or qualities, while quantitative variables represent numerical values.