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10 Cards in this Set
- Front
- Back
Statistics
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the science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data.
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variable
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the characteristic or attribute that can assume different values.
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data
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are the values that variables can assume.
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random variable
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are variables whose values are determined by chance.
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descriptive statistics
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consist of the collection, organization, summarization, and presentation of data.
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inferential statistics
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consist of generalizing from samples to population, performing estimations and hypothesis testing, determining relationships amoung variable, and making predictions.
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population
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consist of all subjects (humans or otherwise) that are being studied.
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sample
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a group of subjects selected from the population
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hypothesis testing
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a decision-making process for evaluating claims(seeing if true or not) about a population, based on info obtained from samples.
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qualitative variable
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variable that can be placed into distinct categories, according to some characteristic or attribute.
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