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9 Cards in this Set
- Front
- Back
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Descriptive statistics
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Example: US Census
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Inferential Statistics
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Uses probability, and consists of generalizaing from samples and performing hypothesis tests
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Discrete Variables
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Assumes that the values CAN be counted
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Continuous Variables
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Assumes an infinte number of values between any two specific values
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Nominal Level of Measurement
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Example: College classes (English, history, psychology).
Key: No ranking order |
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Ordinal Level of Measurement
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Example: Letter grades
Key: Put into ranks, can be place into categories |
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Interval Level of Measurement
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Example: IQ level, or temperature
Key: Ranks data, yet there is no meaningful zero |
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Ratio Level of Measurement
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Example: Height, weight, number of phone calls received
Key: There exists a true zero, and |
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What are the four types of sampling?
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Random, Systematic, Stratified, Cluster, and Convenience
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