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STA CHAPTER 1

QuestionAnswer
Individuals Objects described by a set of data
Variable a CHARACTERISTIC of an individual
Categorial variable example 1. race 2. class 3. zipcode
Numerical variable example 1. points on a test 2. number of pets
Response variable Measures an outcome of a study
Observational study Observes, NO intervening or treatments imposed
Population the ENTIRE group of individuals
Sample a PART of the population
Census Attempts to include WHOLE population in a sample
Experiment Imposes a treatment on individuals to observe their responses
Created by: liladdoyle
 

 



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