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Statistics
Defenitions and formuals for Business Stats I
15
Mathematics
Undergraduate 3
07/10/2009

Additional Mathematics Flashcards

 


 

Cards

Term
Data
Definition
Summarized information
Term
Data Set
Definition

Data collected in a particular study

Term
Element
Definition

Something we collect data on

Term
Observation
Definition

Every Row;

Variables + Elements

Term
Variable
Definition

 

Characteristics of observations or interests of all elements

Term
Flat File
Definition
One entry for each data
Term
Total Number of Data Values
Definition

n x k

 

n = number of elements

k = number of variables

Term
Individuals
Definition
That which we collect data from
Term
Distribution
Definition
How the data set looks
Term
Skew
Definition
Direction of the tail end of the graph
Term
What are the different types of variables?
Definition
  1. Quantitative
  2. Qualtitative/Categorical
Term
Quantitative
Definition

Variable that arithmetic operations make sense


(Example) half your age vs. half your social security number

Term
Categorical
Definition

Falls into one of several categories

 

(Example) Blood type, Name, SSN, Haircolor

Term
Pareto Rank
Definition
Bar Graph from highest to lowest
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