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10 Cards in this Set
- Front
- Back
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Statistics vs. Statistic
What's the difference? |
Statistics is the science of dealing with data.
A statistic is simply a datum. |
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What are the two groups of data?
To that end, which group is more heavily focused in Statistics? |
Numerical and categorical.
Numerical is clearly more focused. |
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Data deal with what kind of numbers?
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Numbers in context (i.e. 15 oz., 24 lbs., etc.)
And values of a variable. |
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Three primary uses of data in Statistics?
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Analyze
Describe, display, and summarize Draw inferences |
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2 main branches of Statistics are:
What does each one do? |
Descriptive and Inferential.
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What are Descriptive Statistics?
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The branch of statistics that organizes and summarizes data.
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What are Inferential Statistics?
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The branch of statistics that draws inferences about a population based on data derived from a given sample.
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How are population and sample related?
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A sample is a subset of the population.
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Observational study:
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A passive observation; relies on sampling.
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Designed Experiment:
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An active experiment; can help establish causation.
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