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Intro to Statistics
JCC Stats Ch. 1.1 Vocabulary
Term | Definition |
---|---|
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 |