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Intro to Statistics

JCC Stats Ch. 1.1 Vocabulary

statistics science of collecting, organizing, summarizing and analyzing information to draw conclusions
data list of observed values for a variable
population entire group to be studied
individual member of the population
sample subset of population to be studied
descriptive statistics numerical description of data, no conclusions drawn
inferential statistics use results from sample, extends to population and measure reliability
parameter numerical summary of population
variables characteristics of the individuals within a population
qualitative variables classification based on attribute or characteristic
quantitative variables numerical measures, adding and subtracting gives meaningful results
discrete variable quantitative variable that has a finite, countable number of possible values
continuous variable quantitative variable that has an infinite number of possible values
Created by: wvaspencer