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Statistics Chpt One
All of the AP stats stuff for chapter one
| Term | Definition |
|---|---|
| Statistics | The science of collecting, organizing, summarizing, and analyzing information to draw conclusions or answer questions. In addition, stats is about providing a measure of confidence in any conclusions |
| Data | a fact or proposition used to draw a conclusion or make a decision |
| Population | the entire group of individuals to be studied |
| individual | member of a population |
| sample | subset of a population that is studied |
| inferential statistics | uses methods that take a result from a sample and extend it to the population, measuring the reliability of the result |
| parameter | a numerical summary of a population |
| descriptive stats | describes the population without making any general conclusions about the population |
| process of statistics | identify the research objective. collect the data needed to answer the questions. perform inference |
| variables | the characteristics of the individuals within the population |
| approach | a way to look at and organize a problem so that it can be solved |
| discrete | can be counted |
| continuous | can be measured |
| nominal lvl of measurement | values of the variable name, label, or categorize |
| ordinal lvl of measurement | naming scheme allows for values to be ranked |
| interval lvl of measurement | differences in the values of the variable have meaning |
| ratio | zero expresses absence |
| confounding | occurs when the effects of two or more explanatory variables are not separated |
| lurking variable | ex |
Created by:
slinn
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