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9 Cards in this Set

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