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Statistics 1
Congero 1000
12
Mathematics
Undergraduate 1
01/22/2013

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Term
statistics
Definition
A collection of procedures for gathering data and analyzing info to help people make decisions when faced with uncertainty.
Term
Descriptive statistics
Definition
Involves Collection, organization, and presentation of data. Purpose is to summarize & report info. Analyzes data the find and interpret pattern.
Term
inferential statistics
Definition
Involves generalizing from sample to population in a systematic way. Purpose is to make estimates, decisions, predictions, or generalizations about a larger data set ideas or a subset.
Term
Population(set)
Definition
All possible observations of the populations of interest
Term
Sample
Definition
Group of subjects; should be representative of the entire population.
Term
parameter
Definition
Numerical characteristics of a population
Term
statistic
Definition
Numerical characteristic of a sample
Term
variable
Definition
Characteristic or trait of interest(age, income, gender, etc)
Term
Experimental Unit
Definition
Object upon which date is collected
Term
statistical inference
Definition
Estimate or prediction or other generalization about a population based on information contained in a sample
Term
quantitative data
Definition
Numerical data, can be counted
Term
qualitative data
Definition
Non-numerical data, classes or categories
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