# Shared Flashcard Set

## Details

MTH160 - Chapter 1 Terms
N/A
16
Mathematics
09/24/2012

Term
 statistics
Definition
 the science of collecting, organizing, summarizing, and analyzing information to draw conclusions or answer questions
Term
 parameter
Definition
 a numerical summary of a population
Term
 statistic
Definition
 a numerical summary of a sample
Term
 population
Definition
 the entire group to be studied
Term
 sample
Definition
 a subset of the population that is being studied
Term
 experiment
Definition
 a controlled study conducted to determine the effect of varying one or more explanatory variables
Term
 survey
Definition
 an investigation about the characteristics of a given population by means of collecting data from a sample of that population and estimating their characteristics through the systematic use of statistical methodology
Term
 descriptive statistics
Definition
 consist of organizing and summarizing data
Term
 inferential statistics
Definition
 uses methods that take a result from a sample and measure the reliability of the result
Term
 continuous
Definition
 a quantitative variable that has an infinite number of possible values that are not countable
Term
 discrete
Definition
 a quantitative variable that has either a finite number of possible values or a countable number of possible values
Term
 qualitative
Definition
 allows for classification based on some attribute or characteristic
Term
 quantitative
Definition
 provide numerical measures for individuals
Term
 Simple random sample
Definition
 if every possible sample has an equally likely chance of occurring
Term
 volunteer sample
Definition
 the individuals in the sample decided themselves to participate in a survey
Term
 convenience sample
Definition
 a sample in which the individuals are easily obtained and not based on randomness
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